01 Record

CVE-2023-5217

Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

HighKEVPUBLISHEDCNA: Chrome

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

View raw JSON

02 Description

Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

03 Exploitation and scoring

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2023-10-02. Federal remediation due 2023-10-23.

SSVC decision

ExploitationactiveCISA reports credible evidence of active exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

49.01% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.8% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2023-09-28 15:23Z2 YR AGO

Last updated

2025-10-21 23:05Z10 MO AGO

Reserved

2023-09-27

Assigning CNA

Chrome

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

CWE-787Out-of-bounds WriteBase
CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

581a852ef645e79a183dcfda6ed9e05e5346f1f9d52787b85d5be55a2c2c2a44

05 Affected products

VendorProductVersionsPlatforms

GoogleChrome117.0.5938.132 to < 117.0.5938.132—

Googlelibvpx1.13.1 to < 1.13.1—

06 References

chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html
crbug.comhttps://crbug.com/1486441
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/28/5
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/28/6
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/1
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/2
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/7
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/9
www.mozilla.orghttps://www.mozilla.org/en-US/security/advisories/mfsa2023-44/
security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2023-5217
bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2241191
stackdiary.comhttps://stackdiary.com/google-discloses-a-webm-vp8-bug-tracked-as-cve-2023-5217/
www.openwall.comhttps://www.openwall.com/lists/oss-security/2023/09/28/5
pastebin.comhttps://pastebin.com/TdkC4pDv
github.comhttps://github.com/webmproject/libvpx/commit/3fbd1dca6a4d2dad332a2110d646e4ffef36d590
github.comhttps://github.com/webmproject/libvpx/commit/af6dedd715f4307669366944cca6e0417b290282
github.comhttps://github.com/webmproject/libvpx/tags
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/11
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/12
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/29/14
www.debian.orghttps://www.debian.org/security/2023/dsa-5510
www.debian.orghttps://www.debian.org/security/2023/dsa-5509
www.debian.orghttps://www.debian.org/security/2023/dsa-5508
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/30/1
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/09/msg00038.html
twitter.comhttps://twitter.com/maddiestone/status/1707163313711497266
arstechnica.comhttps://arstechnica.com/security/2023/09/new-0-day-in-chrome-and-firefox-is-likely-to-plague-other-software/
github.comhttps://github.com/webmproject/libvpx/releases/tag/v1.13.1
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/30/3
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/30/2
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/30/4
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/09/30/5
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BCVSHVX2RFBU3RMCUFSATVQEJUFD4Q63/
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/10/01/2
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/10/01/1
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/10/01/5
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/10/msg00001.html
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/55YVCZNAVY3Y5E4DWPWMX2SPKZ2E5SOV/
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MFWDFJSSIFKWKNOCTQCFUNZWAXUCSS4/
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CWEJYS5NC7KVFYU3OAMPKQDYN6JQGVK6/
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/10/02/6
www.openwall.comhttp://www.openwall.com/lists/oss-security/2023/10/03/11
security.gentoo.orghttps://security.gentoo.org/glsa/202310-04
support.apple.comhttps://support.apple.com/kb/HT213961
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AY642Z6JZODQJE7Z62CFREVUHEGCXGPD/
seclists.orghttp://seclists.org/fulldisclosure/2023/Oct/12
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/10/msg00015.html
support.apple.comhttps://support.apple.com/kb/HT213972
seclists.orghttp://seclists.org/fulldisclosure/2023/Oct/16
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TE7F54W5O5RS4ZMAAC7YK3CZWQXIDSKB/
security.gentoo.orghttps://security.gentoo.org/glsa/202401-34
www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-5217government-resource

01 Record index

CVE-2023-5217

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-5217

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References