VDB
CVE-2026-31518
CVE-2026-31518
PUBLISHED
In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, esp_output_tail_tcp will return an error and not free the skb, because with synchronous crypto, the common xfrm output code will drop the packet for us. With async crypto (esp_output_done), we need to drop the skb when esp_output_tail_tcp returns an error.
EPSS 0.02% · 3.4th percentile
Risk Scores
EPSS Score
0.02%
3.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| linux | linux_kernel | 5.6, 5.6, 5.6 |
| Linux | Linux | e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593, e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 |
Timeline
- Apr 22, 2026 CVE Published
- Apr 23, 2026 Security Advisory
- Apr 28, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score
- May 26, 2026 EPSS Score
References
- https://git.kernel.org/stable/c/aca3ad0c262f54a5b5c95dda80a48365997d1224 url
- https://git.kernel.org/stable/c/41aafca57de4a4c026701622bd4648f112a9edcd url
- https://git.kernel.org/stable/c/4820847e036ff1035b01b69ad68dfc17e7028fe9 url
- https://git.kernel.org/stable/c/6a3ec6efbc4f90e0ccb2e71574f07351f19996f4 url
- https://git.kernel.org/stable/c/df6f995358dc1f3c42484f5cfe241d7bd3e1cd15 url
- https://git.kernel.org/stable/c/88d386243ed374ac969dabd3bbc1409a31d81818 url
- https://git.kernel.org/stable/c/6aa9841d917532d0f2d932d1ff2f3a94305aaf47 url
- https://git.kernel.org/stable/c/0c0eef8ccd2413b0a10eb6bbd3442333b1e64dd2 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-31518 advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00004.html advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00005.html advisory
- https://lists.debian.org/debian-security-announce/2026/msg00154.html advisory
- https://lists.debian.org/debian-security-announce/2026/msg00148.html advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00051.html advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00052.html advisory