Google · Chromium WebP
CVE-2023-4863
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
CISA KEV record
- CISA date added
- 2023-09-13
- CISA due date
- 2023-10-04
- Known ransomware use
- Unknown
NVD risk context
8.8 HIGH
CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.
Description
Google Chromium WebP contains a heap-based buffer overflow vulnerability that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. This vulnerability can affect applications that use the WebP Codec.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
NVD reference index
Vendor and remediation references
NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.
- https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html ↗
- https://crbug.com/1479274 ↗
- https://en.bandisoft.com/honeyview/history/ ↗
- https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a ↗
- https://github.com/webmproject/libwebp/releases/tag/v1.3.2 ↗
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863 ↗
Other NVD references (41)
- http://www.openwall.com/lists/oss-security/2023/09/21/4 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/1 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/3 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/4 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/5 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/6 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/7 ↗
- http://www.openwall.com/lists/oss-security/2023/09/22/8 ↗
- http://www.openwall.com/lists/oss-security/2023/09/26/1 ↗
- http://www.openwall.com/lists/oss-security/2023/09/26/7 ↗
- http://www.openwall.com/lists/oss-security/2023/09/28/1 ↗
- http://www.openwall.com/lists/oss-security/2023/09/28/2 ↗
- http://www.openwall.com/lists/oss-security/2023/09/28/4 ↗
- https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/ ↗
- https://blog.isosceles.com/the-webp-0day/ ↗
- https://bugzilla.suse.com/show_bug.cgi?id=1215231 ↗
- https://lists.debian.org/debian-lts-announce/2023/09/msg00015.html ↗
- https://lists.debian.org/debian-lts-announce/2023/09/msg00016.html ↗
- https://lists.debian.org/debian-lts-announce/2023/09/msg00017.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/ ↗
- https://news.ycombinator.com/item?id=37478403 ↗
- https://security-tracker.debian.org/tracker/CVE-2023-4863 ↗
- https://security.gentoo.org/glsa/202309-05 ↗
- https://security.gentoo.org/glsa/202401-10 ↗
- https://security.netapp.com/advisory/ntap-20230929-0011/ ↗
- https://sethmlarson.dev/security-developer-in-residence-weekly-report-16 ↗
- https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/ ↗
- https://www.bentley.com/advisories/be-2023-0001/ ↗
- https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/ ↗
- https://www.debian.org/security/2023/dsa-5496 ↗
- https://www.debian.org/security/2023/dsa-5497 ↗
- https://www.debian.org/security/2023/dsa-5498 ↗
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/ ↗
- https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863 ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863 ↗
MITRE CWE context
CWE classification
The product writes data past the end, or before the beginning, of the intended buffer.
View official MITRE CWE details ↗NVD record timing
NVD record timeline
These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.
- NVD published
- Sep 12, 2023, 03:15 PM UTC When NVD first published this CVE record.
- NVD last updated
- Jun 17, 2026, 06:38 AM UTC When NVD last changed its analysis or record data.
Advanced: view the technical CVSS vector
This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA notes
https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html?m=1; https://nvd.nist.gov/vuln/detail/CVE-2023-4863