CVE-2025-8028
published 2025-07-22CVE-2025-8028: On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect…
PriorityP347critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.47%
37.8th percentile
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 141.0-1 (sid) | firefox 141.0-1 (sid) |
| debian | firefox-esr | < firefox 141.0-1 (sid) | firefox 141.0-1 (sid) |
| debian | thunderbird | < firefox 141.0-1 (sid) | firefox 141.0-1 (sid) |
| mozilla | firefox | < 115.26.0 | 115.26.0 |
| mozilla | firefox | < 141.0 | 141.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 128.0 < 128.13.0 | 128.13.0 |
| mozilla | firefox | >= 140.0 < 140.1.0 | 140.1.0 |
| mozilla | thunderbird | < 128.13.0 | 128.13.0 |
| mozilla | thunderbird | < 141.0 | 141.0 |
| mozilla | thunderbird | >= 0 < 1:128.13.0esr-1~deb11u1 | 1:128.13.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.13.0esr-1~deb12u1 | 1:128.13.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.13.0esr-1 | 1:128.13.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.13.0esr-1 | 1:128.13.0esr-1 |
| mozilla | thunderbird | >= 140.0 < 140.1.0 | 140.1.0 |
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
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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
firefox: thunderbird: Large branch table could lead to truncated instruction
vendor_redhat·2025-07-22·CVSS 9.8
CVE-2025-8028 [CRITICAL] CWE-1332 firefox: thunderbird: Large branch table could lead to truncated instruction
firefox: thunderbird: Large branch table could lead to truncated instruction
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox br_table instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of the branch address.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Affected
Package: rhel10/thunderbird-flatpak (Red Hat Enterprise Linux 10) - Affected
Package: firefox (Red Hat Enterprise
Debian
CVE-2025-8028: firefox - On arm64, a WASM `br_table` instruction with a lot of entries could lead to the ...
vendor_debian·2025·CVSS 9.8
CVE-2025-8028 [CRITICAL] CVE-2025-8028: firefox - On arm64, a WASM `br_table` instruction with a lot of entries could lead to the ...
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Scope: local
sid: resolved (fixed in 141.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-62: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-62: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-62
CVE: CVE-2025-8028
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.13
Mozilla
Mozilla Foundation Security Advisory 2025-57: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-57: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-57
CVE: CVE-2025-8028
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.26
Mozilla
Mozilla Foundation Security Advisory 2025-59: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-59: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-59
CVE: CVE-2025-8028
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 140.1
Mozilla
Mozilla Foundation Security Advisory 2025-56: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-56: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-56
CVE: CVE-2025-8028
Product: Firefox
Impact: high
Fixed in: Firefox 141
Mozilla
Mozilla Foundation Security Advisory 2025-61: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-61: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-61
CVE: CVE-2025-8028
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 141
Mozilla
Mozilla Foundation Security Advisory 2025-63: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-63: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-63
CVE: CVE-2025-8028
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 140.1
Mozilla
Mozilla Foundation Security Advisory 2025-58: CVE-2025-8028
vendor_mozilla·CVSS 9.8
CVE-2025-8028 [CRITICAL] Mozilla Foundation Security Advisory 2025-58: CVE-2025-8028
Mozilla Foundation Security Advisory 2025-58
CVE: CVE-2025-8028
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.13
OSV
CVE-2025-8028: On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorr
osv·2025-07-22·CVSS 9.8
CVE-2025-8028 [CRITICAL] CVE-2025-8028: On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorr
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
GHSA
GHSA-2fhm-pcv6-vcx9: On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorr
ghsa_unreviewed·2025-07-22
CVE-2025-8028 [CRITICAL] CWE-1332 GHSA-2fhm-pcv6-vcx9: On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorr
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1971581https://www.mozilla.org/security/advisories/mfsa2025-56/https://www.mozilla.org/security/advisories/mfsa2025-57/https://www.mozilla.org/security/advisories/mfsa2025-58/https://www.mozilla.org/security/advisories/mfsa2025-59/https://www.mozilla.org/security/advisories/mfsa2025-61/https://www.mozilla.org/security/advisories/mfsa2025-62/https://www.mozilla.org/security/advisories/mfsa2025-63/https://lists.debian.org/debian-lts-announce/2025/07/msg00016.html
2025-07-22
Published