SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2026-26449

In Stomper 5e2741e when a client sends a SEND frame missing the destination header field, the server triggers a null pointer dereference (or access to invalid memory) while processing the frame, causing the process to crash.

HIGH 7.5EPSS 0.34%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In Stomper 5e2741e when a client sends a SEND frame missing the destination header field, the server triggers a null pointer dereference (or access to invalid memory) while processing the frame, causing the process to crash.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.34% probability · 28th percentile
CISA KEV
Not listed
Weakness
CWE-476
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.