01 Record
CVE-2026-42765
NULL Dereference in Certificate Verification with OCSP Checking
HighPUBLISHEDCNA: openssl
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
NULL Dereference in Certificate Verification with OCSP Checking
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.50% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 43.1% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-07-23.
- Red Hat severity
- Low. 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
- 2026-06-09 16:03Z4 MO AGO
- Last updated
- 2026-06-10 07:48Z4 MO AGO
- Reserved
- 2026-04-29
- Assigning CNA
- openssl
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.2
- Document digest
- 1deaa439cc354568b7aca97798ade7c3f74a9c269201bf30ebb6ad820d6b3c33
05 Affected products
VendorProductVersionsPlatforms
06 References
- openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260609.txt
- github.com4.0.1 git commithttps://github.com/openssl/openssl/commit/14340b7fa1d444615486bc137014b064e64ec334
- github.com3.6.3 git commithttps://github.com/openssl/openssl/commit/eb345da18ce2216b2f3ade9c2bc23e068487fa97
07 Fixed in
Debian 14
- openssl Fixed in 3.6.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- nodejs No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.