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TI-2026-20245 Aliases CVE-2026-25061

tcpflow has TIM Element OOB Write in wifipcap

Priority LOW 32CWE-787Published · Updated

Key facts

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

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

Summary

tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00574 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
simsongtcpflowup to 1.61—No fix listedCNA
  • tcpflow Vendorsimsong Affected up to 1.61 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:digitalcorpora:tcpflow:*:*:*:*:*:*:*:*up to 1.6.1VulnerableDigitalcorpora
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:digitalcorpora:tcpflow:*:*:*:*:*:*:*:* Versions up to 1.6.1 Vulnerable ·Digitalcorpora
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-25061

References

Exploit 1

Advisory 1

  • TI-2026-20056 bulk_extractor has Heap-based Buffer Overflow vulnerability CVSS 4.0MEDIUM 5.5
  • TI-2026-83085 Out-of-bounds read in tcpflow lets attackers leak process memory CVSS 4.0MEDIUM 6.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences