CVE-2025-9179
published 2025-08-19CVE-2025-9179: An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents…
PriorityP346critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.61%
48.7th percentile
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| debian | firefox-esr | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| debian | thunderbird | < firefox 142.0-1 (sid) | firefox 142.0-1 (sid) |
| mozilla | firefox | < 115.27.0 | 115.27.0 |
| mozilla | firefox | < 142.0 | 142.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 128.0 < 128.14.0 | 128.14.0 |
| mozilla | firefox | >= 140.0 < 140.2.0 | 140.2.0 |
| mozilla | thunderbird | < 128.14.0 | 128.14.0 |
| mozilla | thunderbird | < 142.0 | 142.0 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb11u1 | 1:128.14.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb12u1 | 1:128.14.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1~deb13u1 | 1:128.14.0esr-1~deb13u1 |
| mozilla | thunderbird | >= 0 < 1:128.14.0esr-1 | 1:128.14.0esr-1 |
| mozilla | thunderbird | >= 140.0 < 140.2.0 | 140.2.0 |
| msrc | azl3_lynx_2.9.0-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_lynx_2.9.0dev.9-5_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
vendor_msrc7.5HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
vendor_redhat·2025-08-19·CVSS 9.8
CVE-2025-9179 [CRITICAL] CWE-119 thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
A flaw was found in Thunderbird and Firefox. The Mozilla Foundation's Security Advisory describes the following issue: An attacker is able to perform memory corruption in the GMP process which process encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the conten
Debian
CVE-2025-9179: firefox - An attacker was able to perform memory corruption in the GMP process which proce...
vendor_debian·2025·CVSS 9.8
CVE-2025-9179 [CRITICAL] CVE-2025-9179: firefox - An attacker was able to perform memory corruption in the GMP process which proce...
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Scope: local
sid: resolved (fixed in 142.0-1)
Microsoft
It was found that Lynx doesn't parse the authority component of the URL correctly
vendor_msrc·2016-12-13·CVSS 7.5
CVE-2016-9179 [HIGH] CWE-20 It was found that Lynx doesn't parse the authority component of the URL correctly
It was found that Lynx doesn't parse the authority component of the URL correctly
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Mozilla
Mozilla Foundation Security Advisory 2025-65: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-65: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-65
CVE: CVE-2025-9179
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.27
Mozilla
Mozilla Foundation Security Advisory 2025-70: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-70: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-70
CVE: CVE-2025-9179
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 142
Mozilla
Mozilla Foundation Security Advisory 2025-64: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-64: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-64
CVE: CVE-2025-9179
Product: Firefox
Impact: high
Fixed in: Firefox 142
Mozilla
Mozilla Foundation Security Advisory 2025-71: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-71: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-71
CVE: CVE-2025-9179
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.14
Mozilla
Mozilla Foundation Security Advisory 2025-66: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-66: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-66
CVE: CVE-2025-9179
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.14
Mozilla
Mozilla Foundation Security Advisory 2025-67: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-67: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-67
CVE: CVE-2025-9179
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.2
Mozilla
Mozilla Foundation Security Advisory 2025-72: CVE-2025-9179
vendor_mozilla·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Foundation Security Advisory 2025-72: CVE-2025-9179
Mozilla Foundation Security Advisory 2025-72
CVE: CVE-2025-9179
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.2
VulDB
Mozilla Thunderbird up to 141 GMP memory corruption (Nessus ID 252327 / WID-SEC-2025-1866)
vuldb·2026-10-01·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Thunderbird up to 141 GMP memory corruption (Nessus ID 252327 / WID-SEC-2025-1866)
A vulnerability has been found in Mozilla Thunderbird up to 141 and classified as critical. This impacts an unknown function of the component GMP. This manipulation causes memory corruption.
The identification of this vulnerability is CVE-2025-9179. It is possible to initiate the attack remotely. There is no exploit available.
The affected component should be upgraded.
VulDB
Mozilla Firefox up to 141 GMP memory corruption (Nessus ID 252327 / WID-SEC-2025-1866)
vuldb·2026-10-01·CVSS 9.8
CVE-2025-9179 [CRITICAL] Mozilla Firefox up to 141 GMP memory corruption (Nessus ID 252327 / WID-SEC-2025-1866)
A vulnerability, which was classified as critical, was found in Mozilla Firefox up to 141. This affects an unknown function of the component GMP. The manipulation results in memory corruption.
This vulnerability was named CVE-2025-9179. The attack may be performed from remote. There is no available exploit.
You should upgrade the affected component.
GHSA
GHSA-7379-6rf2-q4f9: An attacker was able to perform memory corruption in the GMP process which processes encrypted media
ghsa_unreviewed·2025-08-19
CVE-2025-9179 [CRITICAL] CWE-119 GHSA-7379-6rf2-q4f9: An attacker was able to perform memory corruption in the GMP process which processes encrypted media
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
OSV
CVE-2025-9179: An attacker was able to perform memory corruption in the GMP process which processes encrypted media
osv·2025-08-19·CVSS 9.8
CVE-2025-9179 [CRITICAL] CVE-2025-9179: An attacker was able to perform memory corruption in the GMP process which processes encrypted media
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
No detection rules found.
No public exploits indexed.
Bugzilla
Missing shmem size validation in [@ mozilla::gmp::GMPVideoDecoderChild::RecvDecode] allows attacker-steered OOB read/write in the GMP process via OpenH264 NAL size-prefix walk
bugzilla·2026-06-05
CVE-2025-9179 Missing shmem size validation in [@ mozilla::gmp::GMPVideoDecoderChild::RecvDecode] allows attacker-steered OOB read/write in the GMP process via OpenH264 NAL size-prefix walk
Missing shmem size validation in [@ mozilla::gmp::GMPVideoDecoderChild::RecvDecode] allows attacker-steered OOB read/write in the GMP process via OpenH264 NAL size-prefix walk
GMPVideoDecoderChild::RecvDecode() in the GMP (Gecko Media Plugin) codec process receives a GMPVideoEncodedFrameData descriptor plus an IPDL Shmem from the content process (PGMPVideoDecoder::Decode). It constructs a GMPVideoEncodedFrameImpl directly from the descriptor without ever validating the attacker-controlled mSize() field against the actual size of the shmem mapping. The validator GMPVideoEncodedFrameImpl::CheckFrameData() — which enforces mSize() && aCodecSpecificInfo,
const int64_t& aRenderTimeMs) {
if (!mVideoDecoder) {
DeallocShmem(aInputShmem);
return IPC_FAIL(this, "!mVideoDecoder");
}
// VULNERABILIT
Bugzilla
CVE-2025-9179 thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
bugzilla·2025-08-19·CVSS 9.8
CVE-2025-9179 [CRITICAL] CVE-2025-9179 thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
CVE-2025-9179 thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component
An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2025:14416 https://access.redhat.com/errata/RHSA-2025:14416
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 10
Via RHSA-2025:14417 https://access.redhat.c
https://bugzilla.mozilla.org/show_bug.cgi?id=1979527https://www.mozilla.org/security/advisories/mfsa2025-64/https://www.mozilla.org/security/advisories/mfsa2025-65/https://www.mozilla.org/security/advisories/mfsa2025-66/https://www.mozilla.org/security/advisories/mfsa2025-67/https://www.mozilla.org/security/advisories/mfsa2025-70/https://www.mozilla.org/security/advisories/mfsa2025-71/https://www.mozilla.org/security/advisories/mfsa2025-72/https://lists.debian.org/debian-lts-announce/2025/08/msg00016.htmlhttps://lists.debian.org/debian-lts-announce/2025/08/msg00018.html
2025-08-19
Published