CVE-2026-1861
published 2026-02-03CVE-2026-1861: Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML…
PriorityP350high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.41%
33.8th percentile
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chromium | chromium | >= 0 < 144.0.7559.109-2~deb12u1 | 144.0.7559.109-2~deb12u1 |
| chromium | chromium | >= 0 < 144.0.7559.109-2~deb13u1 | 144.0.7559.109-2~deb13u1 |
| chromium | chromium | >= 0 < 144.0.7559.109-2 | 144.0.7559.109-2 |
| debian | chromium | < chromium 144.0.7559.109-2~deb12u1 (bookworm) | chromium 144.0.7559.109-2~deb12u1 (bookworm) |
| chrome | < 144.0.7559.132 | 144.0.7559.132 | |
| chrome | >= 144.0.7559.132 < 144.0.7559.132 | 144.0.7559.132 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
| paloalto | prisma_browser | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_debian8.8HIGH
vendor_msrc8.8HIGH
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Palo Alto
PAN-SA-2026-0002 Chromium: Monthly Vulnerability Update (February 2026)
vendor_paloalto·2026-02-11·CVSS 8.8
[HIGH] PAN-SA-2026-0002 Chromium: Monthly Vulnerability Update (February 2026)
PAN-SA-2026-0002 Chromium: Monthly Vulnerability Update (February 2026)
Palo Alto Networks incorporated the following Chromium security fixes into our products: https://chromereleases.googleblog.com/2026/02/stable-channel-update-for-desktop.html https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_27.html https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_20.html https://chromereleases.googleblog.com/2026/01/stable-channel-update-for-desktop_13.html CVE Summary CVE-2026-0899 Out of bounds memory access in V8 CVE-2026-0900 Inappropriate implementation in V8 CVE-2026-0901 Inappropriate implementation in Blink CVE-2026-0902 Inappropriate implementation in V8 CVE-2026-0903 Inappropriate implementation in Downloads CVE-2026-0904 Incorrect
Microsoft
Chromium: CVE-2026-1861 Heap buffer overflow in libvpx
vendor_msrc·2026-02-10·CVSS 8.8
CVE-2026-1861 [HIGH] Chromium: CVE-2026-1861 Heap buffer overflow in libvpx
Chromium: CVE-2026-1861 Heap buffer overflow in libvpx
Description: This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
FAQ: What is the version information for this release?
Microsoft Edge Version
Date Released
Based on Chromium Version
144.0.3719.115
02/05/2026
144.0.7559.132/.133
FAQ: Why is this Chrome CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable.
How can I see the version of the br
Chrome
Stable Channel Update for Desktop: CVE-2026-1861
vendor_chrome·2026-02-03·CVSS 8.8
CVE-2026-1861 [HIGH] Stable Channel Update for Desktop: CVE-2026-1861
Stable Channel Update for Desktop
CVE-2026-1861: Heap buffer overflow in libvpx. Reported by Google on 2026-01-26 [TBD][ 479726070 ] High CVE-2026-1862: Type Confusion in V8
Reported by Chaoyuan Peng (@ret2happy) on 2026-01-29 We would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel
Severity: high
Debian
CVE-2026-1861: chromium - Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed ...
vendor_debian·2026·CVSS 8.8
CVE-2026-1861 [HIGH] CVE-2026-1861: chromium - Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed ...
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Scope: local
bookworm: resolved (fixed in 144.0.7559.109-2~deb12u1)
bullseye: open
forky: resolved (fixed in 144.0.7559.109-2)
sid: resolved (fixed in 144.0.7559.109-2)
trixie: resolved (fixed in 144.0.7559.109-2~deb13u1)
GHSA
GHSA-9jqj-4cr8-rr2f: Heap buffer overflow in libvpx in Google Chrome prior to 144
ghsa_unreviewed·2026-02-03
CVE-2026-1861 [HIGH] CWE-122 GHSA-9jqj-4cr8-rr2f: Heap buffer overflow in libvpx in Google Chrome prior to 144
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
OSV
CVE-2026-1861: Heap buffer overflow in libvpx in Google Chrome prior to 144
osv·2026-02-03·CVSS 8.8
CVE-2026-1861 [HIGH] CVE-2026-1861: Heap buffer overflow in libvpx in Google Chrome prior to 144
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
No detection rules found.
No public exploits indexed.
Sophos
February’s Patch Tuesday assumes battle stations
blogs_sophos·2026-02-13
February’s Patch Tuesday assumes battle stations
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Bleepingcomputer
Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
blogs_bleepingcomputer·2026-02-10·CVSS 8.8
[HIGH] Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
## Microsoft February 2026 Patch Tuesday fixes 6 zero-days, 58 flaws
## Lawrence Abrams
25 Elevation of Privilege vulnerabilities
5 Security Feature Bypass vulnerabilities
12 Remote Code Execution vulnerabilities
6 Information Disclosure vulnerabilities
3 Denial of Service vulnerabilities
7 Spoofing vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today. Therefore, the number of flaws does not include 3 Microsoft Edge flaws fixed earlier this month.
As part of these updates, Microsoft has also begun to roll out updated Secure Boot certificates to replace the original 2011 certificates that are expiring in late June 2026.
"With this update, Windows quality updates include a broad set of targeting data that i
Wiz
CVE-2026-1861 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.8
CVE-2026-1861 [HIGH] CVE-2026-1861 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-1861 :
vulnerability analysis and mitigation
Heap buffer overflow in libvpx in Google Chrome prior to 144.0.7559.132 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Source : NVD
## 8.8
Score
Published February 3, 2026
Severity HIGH
CNA Score 8.8
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 8.4
Exploitation Probability (EPSS) N/A
Affected packages and libraries
chromium-qt5-ui-debuginfo
cef
Sources
Alpine 3.23 Severity HIGH Has Fix Added at: Feb 04, 2026
Debian 11 Severity HIGH No Fix Added at: Feb 04, 2026
Debian 12, 13, 14 Severity HIGH Has Fix Added at: Feb 04, 2026
Echo Severity HIGH H
Sophos
February’s Patch Tuesday assumes battle stations
blogs_sophos
February’s Patch Tuesday assumes battle stations
Share This
Microsoft on Tuesday released 58 patches affecting 15 product families. Five of the addressed issues, all involving Azure, are considered by Microsoft to be of Critical severity, though only two require urgent attention (more on that below). Fifteen have a CVSS base score of 8.0 or higher, including two with a 9.8 base score. Six are known to be under active exploit in the wild, and three are publicly disclosed (including one not yet known to be under exploit).
At patch time, five CVEs are judged more likely to be exploited in the next 30 days by the company’s estimation, in addition to the six already detected to be so. Various of this month’s issues are amenable to direct detection by Sophos protections, and we include information on those in a table below. The release also
Bugzilla
Heap buffer overflow in libvpx
bugzilla·2026-02-04·CVSS 8.8
CVE-2026-1861 [HIGH] Heap buffer overflow in libvpx
Heap buffer overflow in libvpx
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0
Steps to reproduce:
--/--
Actual results:
Google released a new version with a remark to this CVE:
CVE-2026-1861: Heap buffer overflow in libvpx
It seems that the CVE was fixed in libvpx Version 1.16.0:
https://chromium.googlesource.com/webm/libvpx/+/refs/tags/v1.16.0
It looks like that the version was updated with bug https://bugzilla.mozilla.org/show_bug.cgi?id=2009787. The target milestone is 149.0a1.
Expected results:
The fix should also be available in current versions of Firefox.
Discussion:
[Tracking Requested - why for this release]:
Chrome released a libvpx update and advisory for this. The patch is public. The testcase currently is not public but oss-fuzz
2026-02-03
Published