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CVE-2025-49112setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
- 3.1LowCVSS base score
- 0.26%Exploitation in 30 daysEPSS · top 82% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.
Timeline
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| mitreCNA (assigner) | 3.1 | Low3.1 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Deferred | 3.1 | Low3.1 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.26% · top 82% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.
Affected products
References
References3
- https://github.com/valkey-io/valkey/blob/daea05b1e26db29bfd1c033e27f9d519a2f8ccbb/src/networking.c#L886 (opens in a new tab)
- https://github.com/valkey-io/valkey/pull/2101 (opens in a new tab)
- https://github.com/redis/redis/blob/994bc96bb1744cb153392fc96bdba43eae56e17f/src/networking.c#L783 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-16611 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-49112)Record last updated .