Weaknesses in the generation of TCP/UDP source ports and some other header values in Google's gVisor allowed them to be predicted by an external attacker in some circumstances.
https://www.ndss-symposium.org/wp-content/uploads/2025-122-paper.pdf
https://github.com/google/gvisor/commit/cbdb2c61b1f753834cedf2ebe68cbc335dadca52
https://github.com/google/gvisor/commit/83f75082e5b03fafca9201d9d9939028f712b0b2
https://github.com/google/gvisor/commit/5d2bf2546805afa09a6f6d9b23ec267823e32205
Published: 2025-01-30
Updated: 2025-07-29
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity: Medium
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Severity: Medium
EPSS: 0.00053