CVE-2023-26369
Adobe Acrobat and Reader Out-of-Bounds Write Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 October 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Acrobat Reader versions 23.003.20284 (and earlier), 20.005.30516 (and earlier) and 20.005.30514 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 6.75% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 14 September 2023 · due 5 October 2023
- Weakness
- CWE-787
- Affected
- adobe/acrobat · adobe/acrobat dc · adobe/acrobat reader · adobe/acrobat reader dc
- Source
- psirt@adobe.com
EPSS 6.7% since 8 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://helpx.adobe.com/security/products/acrobat/apsb23-34.html; https://nvd.nist.gov/vuln/detail/CVE-2023-26369
References
- https://helpx.adobe.com/security/products/acrobat/apsb23-34.htmlVendor Advisory
- https://helpx.adobe.com/security/products/acrobat/apsb23-34.htmlVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-26369Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.