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Insufficiently random session values in Linksys RE6250 web interface

Priority MEDIUM 61CWE-310Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Linksys RE6250 from 1.0.04.001 contains a flaw in the strcmp function of its Web Management Interface. Manipulating the session_id argument yields insufficiently random values (CWE-330). A remote attacker without privileges or user interaction can exploit this, although the attack complexity is high. The exploit has been publicly disclosed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A vulnerability has been found in Linksys RE6250 1.0.04.001. This affects the function strcmp of the component Web Management Interface. The manipulation of the argument session_id leads to insufficiently random values. The attack may be initiated remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been disclosed to the public and may be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.005 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinksysRE62501.0.04.001—No fix listedCNA
  • RE6250 VendorLinksys Affected 1.0.04.001 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:linksys:re6250_firmware:*:*:*:*:*:*:*:*——Linksys
  • cpe:2.3:o:linksys:re6250_firmware:*:*:*:*:*:*:*:* Versions — — ·Linksys

Remediation

The sources list no fixed version for Linksys RE6250.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-114576
  2. 2026-10-22 Alias added: GHSA-w2w5-phf3-47jv
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-24 CISA SSVC decision points changed
  5. 2026-10-24 Priority changed: LOW → MEDIUM

References

  • TI-2025-24206 Linksys Routers E/WAG/WAP/WES/WET/WRT-Series CVSS 4.0CRITICAL 10.0
  • TI-2017-12715 OS command injection in Linksys WVBR0 CVSS 3.0CRITICAL 9.8
  • TI-2026-70977 Stack-based buffer overflow in Linksys E1700 Mac Filter CVSS 4.0CRITICAL 10.0
  • TI-2026-22199 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22198 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22197 Missing authentication in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
See all 253 →

Sources