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ExploitedIn CISA KEVFix available

CVE-2023-5217

Exploitation confirmed. First attested on 2023-10-02 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-09-28
  • Fixed in27.0.0-beta.8 · 26.2.4 · 25.8.4 · 24.8.5 · 22.3.25
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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. (Chromium security severity: High)

Timeline

dates in UTC
  1. 2023-09-2816:15CVE publishedNVD
  2. 2023-10-02Added to the CISA KEV catalogCISA KEV
  3. 2023-10-02Listed as exploited by GCVEGCVE
  4. 2023-10-02Exploitation first reportedCISA KEV
  5. 2023-11-1516:38SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-04 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-5217?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-5217?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
electron
BranchAffectedFixed in
27.0≥ 27.0.0-alpha.1, < 27.0.0-beta.827.0.0-beta.8
26.x≥ 26.0.0, < 26.2.426.2.4
25.x≥ 25.0.0, < 25.8.425.8.4
24.x≥ 24.0.0, < 24.8.524.8.5
22.3< 22.3.2522.3.25
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published
12.0= 12.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
37.x= 37no fix published
38.x= 38no fix published
39.x= 39no fix published

9 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA2 products

As Chrome, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Google Chrome
    Affected
    • ≥ 117.0.5938.132, < 117.0.5938.132fixed in 117.0.5938.132custom
  • Google libvpx
    Affected
    • ≥ 1.13.1, < 1.13.1fixed in 1.13.1custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-01-31

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • chromiumSUSE:Package Hub 15 SP5all versions · fixed in 117.0.5938.132-bp155.2.40.1
  • chromiumSUSE:Package Hub 15 SP4all versions · fixed in 117.0.5938.132-bp155.2.40.1
  • chromiumopenSUSE:Tumbleweedall versions · fixed in 117.0.5938.132-1.1
  • chromiumopenSUSE:Leap 15.5all versions · fixed in 117.0.5938.132-bp155.2.40.1
  • chromiumopenSUSE:Leap 15.4all versions · fixed in 117.0.5938.132-bp155.2.40.1
  • chromiumDebian:14all versions · fixed in 117.0.5938.132-1
  • chromiumDebian:13all versions · fixed in 117.0.5938.132-1
  • chromiumDebian:12all versions · fixed in 117.0.5938.132-1~deb12u1

167 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-5217 Red Hat Product Security566 products fixed · 9 known affected

    libvpx: Heap buffer overflow in vp8 encoding in libvpx

    libvpx as a component of Red Hat Enterprise Linux 6 · libvpx-devel as a component of Red Hat Enterprise Linux 6 · libvpx-utils as a component of Red Hat Enterprise Linux 6 · +6 more

  • ICSA-25-203-04 CISA2 known affected

    Schneider Electric EcoStruxure Power Operation (Update A)

    Schneider Electric EcoStruxure Power Operation (EPO) 2022: <=CU6 · Schneider Electric EcoStruxure Power Operation (EPO) 2024: <=CU1

  • RHSA-2023:5538 Red Hat Product Security41 products fixed

    Red Hat Security Advisory: libvpx security update

  • RHSA-2023:5534 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: libvpx security update

  • RHSA-2023:5535 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: libvpx security update

  • RHSA-2023:5537 Red Hat Product Security41 products fixed

    Red Hat Security Advisory: libvpx security update

19 more advisories

Full record on NVD

Fix

  1. Update electron to 27.0.0-beta.8 · 26.2.4 · 25.8.4 · 24.8.5 · 22.3.25
  2. CISA’s required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.due 2023-10-23
  3. Vendor fix Red Hat Product Security RHSA-2023:5538 · 41 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, all applications using libvpx must be restarted for the changes to take effect.
  4. Vendor fix Red Hat Product Security RHSA-2023:5475 · 11 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.
  5. Vendor fix Red Hat Product Security RHSA-2023:5477 · 21 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.
  6. Workaround from the vendor Red Hat Product Security RHSA-2023:5538 · 41 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  7. Mitigation from the vendor CISA ICSA-25-203-04 · 2 productsEcoStruxure Power Operation 2022 CU7 includes an updated version of PostgreSQL and is available for download here: https://community.se.com/t5/EcoStruxure-Power-Operation/v2022-Release-amp-Updates-Install-Procedure/m-p/491544#M7322
  8. Mitigation from the vendor CISA ICSA-25-203-04 · 2 productsSchneider Electric recommends users to employ appropriate patching methodologies when applying these patches to their systems. They strongly recommend making backups and evaluating the impact of these patches in a test and development environment or on offline infrastructure. Contact Schneider Elec…

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
3 repositories, unverifiedUT-Security/cve-2023-5217-pocTrinadh465/platform_external_libvpx_v1.8.0_CVE-2023-5217Trinadh465/platform_external_libvpx_v1.4.0_CVE-2023-5217
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-10-02
Patch Due Date
2023-10-23
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2023-09-28
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-qqvq-6xgj-jw8g

Frequently asked questions

What is 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. (Chromium security severity: High)

Is CVE-2023-5217 actively exploited?

Yes. CVE-2023-5217 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-10-23.

What is the CVSS score for CVE-2023-5217?

CVE-2023-5217 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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