Critical severity · published Aug 15, 2026
CVE-2026-72319
ipvs: ensure inner headers in ICMP errors are in headroom
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
ipvs: ensure inner headers in ICMP errors are in headroom
Sashiko points out that after stripping the outer headers
with pskb_pull() we should ensure the inner IP headers
in ICMP errors from tunnels are present in the skb headroom
for functions like ipv4_update_pmtu(), icmp_send() and
IP_VS_DBG().
Also, add more checks for the length of the inner headers.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before 19657b3a17b774ae4e2f2635b5ae8638c9344a40; f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before dac813101914c21219ac221a60a31a11bc90e7ec; f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before dd22f74a09e25ca298ced0a3763ef353242cb78d; f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before 9bc9b95aee2b2e3f1301a16a67ee504960402875; f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before a735f9964a3d9ed97daf9b08507f8b5bcafe6326; f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e before 8f48cfe657409fb5c7ba0521b14da6d47546d9cf; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72319
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72319
git.kernel.org
https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40
git.kernel.org
https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c
git.kernel.org
https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf
git.kernel.org
https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2
git.kernel.org
https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875
git.kernel.org
https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326
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