Answer in brief
CVE-2025-37789 records a High severity (CVSS 7.8) vulnerability in net: openvswitch: fix nested key length validation in the set() action. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ccb1352e76cff0524e7ccb2074826a092dd13016 <54c6957d1123a2032099b9eab51c314800f677ce || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <a27526e6b48eee9e2d82efff502c4f272f1a91d4 || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <1489c195c8eecd262aa6712761ba5288203e28ec || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <824a7c2df5127b2402b68a21a265d413e78dcad7 || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <be80768d4f3b6fd13f421451cc3fee8778aba8bc || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <03d7262dd53e8c404da35cc81aaa887fd901f76b || >=ccb1352e76cff0524e7ccb2074826a092dd13016 <65d91192aa66f05710cfddf6a14b5a25ee554dba | 54c6957d1123a2032099b9eab51c314800f677ce, 7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd, a27526e6b48eee9e2d82efff502c4f272f1a91d4, 1489c195c8eecd262aa6712761ba5288203e28ec, 824a7c2df5127b2402b68a21a265d413e78dcad7, be80768d4f3b6fd13f421451cc3fee8778aba8bc, 03d7262dd53e8c404da35cc81aaa887fd901f76b, 65d91192aa66f05710cfddf6a14b5a25ee554dba |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
May 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
Quoted source text, attributed separately from HOL analysis.