Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ CVE-2025-49112 — keydb

🟢 CVSS 3.1 — Low ✅ No Known Exploit NVD
3.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

setDeferredReply in networking.c in Valkey through 8.1.1 has an integer underflow for prev->size - prev->used.

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

  • Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Affected software

CVE-2025-49112 is recorded against 4 packages.

  • keydb
  • redis
  • unknown
  • valkey

Timeline and source

Published on 16 October 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
github.com (Web)
github.com (Web)
nvd.nist.gov (Web)

Other advisories for this package

keydb has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2025-49112 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity LOW
CVSS Score 3.1
CVSS Vector CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-10-16
Updated 2026-08-20
Modified 2025-10-16
Fix URL N/A

Affected Packages

Software From version Fixed in
keydb — —
redis — —
unknown — —
valkey — —

Similar Threats

Free Vulnerability Check

Is your site affected by CVE-2025-49112?

BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against CVE-2025-49112 and other known CVE records.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2025
✓