CVE-2023-5217 (GCVE-0-2023-5217)
Vulnerability from cvelistv5 – Published: 2023-09-28 15:23 – Updated: 2025-10-21 23:05Summary
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)
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2023-11-15 16:38 UTC
CWE
- Heap buffer overflow
- CWE-787 - Out-of-bounds Write
Assigner
References
53 references
Impacted products
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 74df2788-390f-45df-b8b2-7da229fb9084
Exploited: Yes
Timestamps
First Seen: 2023-10-02
Asserted: 2023-10-02
Scope
Notes: KEV entry: Google Chromium libvpx Heap Buffer Overflow Vulnerability | Affected: Google / Chromium libvpx | Description: Google Chromium libvpx contains a heap buffer overflow vulnerability in vp8 encoding that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could impact web browsers using libvpx, including but not limited to Google Chrome. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-10-23 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_27.html; https://nvd.nist.gov/vuln/detail/CVE-2023-5217
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-787 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Chromium libvpx |
| Due Date | 2023-10-23 |
| Date Added | 2023-10-02 |
| Vendorproject | |
| Vulnerabilityname | Google Chromium libvpx Heap Buffer Overflow Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:26 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 2acf8aa7-a28d-43c8-af49-b92752bb944b
Exploited: Yes
Timestamps
First Seen: 2023-10-02
Asserted: 2023-10-02
Scope
Notes: KEVIntel entry: 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... | Affected: Google / Chrome, libvpx | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | 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... |
| Vendor | |
| Product | Chrome, libvpx |
| Added Date | 2023-10-02T00:00:00.000Z |
| Cvss Score | 8.8 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:05 UTC
| Updated: 2026-07-10 06:14 UTC
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"descriptions": "[{\"lang\": \"en\", \"value\": \"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)\"}, {\"lang\": \"es\", \"value\": \"El desbordamiento del b\\u00fafer en la codificaci\\u00f3n vp8 en libvpx en Google Chrome anterior a 117.0.5938.132 y libvpx 1.13.1 permit\\u00eda a un atacante remoto explotar potencialmente la corrupci\\u00f3n del mont\\u00f3n a trav\\u00e9s de una p\\u00e1gina HTML manipulada. (Severidad de seguridad de Chrome: alta)\"}]",
"id": "CVE-2023-5217",
"lastModified": "2024-12-20T19:01:23.347",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 5.9}]}",
"published": "2023-09-28T16:15:10.980",
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-21T14:12:20+00:00",
"cve": "CVE-2023-5217",
"id": "CVE-2023-5217",
"initial_release_date": "2023-09-27T00:00:00+00:00",
"product_status:fixed": "566",
"product_status:known_affected": "9",
"product_status:known_not_affected": "4",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libvpx: Heap buffer overflow in vp8 encoding in libvpx",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-5217.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-08-29T02:16:34Z",
"cve": "CVE-2023-5217",
"id": "CVE-2023-5217",
"initial_release_date": "2023-09-28T01:45:38Z",
"product_status:known_affected": "477",
"product_status:known_not_affected": "1",
"product_status:recommended": "513",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-5217",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-5217.json",
"version": "61"
},
"vulnrichment": {
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\"https://security.gentoo.org/glsa/202401-34\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T07:52:08.351Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-5217\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2023-11-15T16:38:17.360361Z\"}}}, {\"other\": 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\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AY642Z6JZODQJE7Z62CFREVUHEGCXGPD/\"}, {\"url\": \"http://seclists.org/fulldisclosure/2023/Oct/12\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/10/msg00015.html\"}, {\"url\": \"https://support.apple.com/kb/HT213972\"}, {\"url\": \"http://seclists.org/fulldisclosure/2023/Oct/16\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TE7F54W5O5RS4ZMAAC7YK3CZWQXIDSKB/\"}, {\"url\": \"https://security.gentoo.org/glsa/202401-34\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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. 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"cveMetadata": "{\"cveId\": \"CVE-2023-5217\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:05:36.191Z\", \"dateReserved\": \"2023-09-27T01:52:05.679Z\", \"assignerOrgId\": \"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28\", \"datePublished\": \"2023-09-28T15:23:18.340Z\", \"assignerShortName\": \"Chrome\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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