CVE-2026-67973 Denial of service in n/a
Attackers can cause a Denial of Service in NASA cFS by replaying final CFDP PDUs, affecting space and ground systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-67973?
CVE-2026-67973 is a high-severity denial of service vulnerability in n/a, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs.
Weakness: CWE-400
Which versions are affected by CVE-2026-67973?
How do I fix CVE-2026-67973?
No fix has been published for CVE-2026-67973 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-67973 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67973 exists.
Sources
Also known as GHSA-q2fh-273g-4qm9.