01 Record

CVE-2025-37756

net: tls: explicitly disallow disconnect

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

net: tls: explicitly disallow disconnect

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.29% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 22.2% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-05-01 12:56Z1 YR AGO

Last updated

2026-10-15 21:51Z13 DAYS AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

3165ac4f11cdf755f0fa0c338255d98ea6d834b017337d756e2fee6ed7169c3d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < 7bdcf5bc35ae59fc4a0fa23276e84b4d1534a3cf, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < ac91c6125468be720eafde9c973994cb45b61d44, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < f3ce4d3f874ab7919edca364c147ac735f9f1d04, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < 2bcad8fefcecdd5f005d8c550b25d703c063c34a, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < 9fcbca0f801580cbb583e9cb274e2c7fbe766ca6, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < c665bef891e8972e1d3ce5bbc0d42a373346a2c3, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < 8513411ec321942bd3cfed53d5bb700665c67d86, 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 to < 5071a1e606b30c0c11278d3c6620cd6a24724cf6, 4.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7bdcf5bc35ae59fc4a0fa23276e84b4d1534a3cf
git.kernel.orghttps://git.kernel.org/stable/c/ac91c6125468be720eafde9c973994cb45b61d44
git.kernel.orghttps://git.kernel.org/stable/c/f3ce4d3f874ab7919edca364c147ac735f9f1d04
git.kernel.orghttps://git.kernel.org/stable/c/2bcad8fefcecdd5f005d8c550b25d703c063c34a
git.kernel.orghttps://git.kernel.org/stable/c/9fcbca0f801580cbb583e9cb274e2c7fbe766ca6
git.kernel.orghttps://git.kernel.org/stable/c/c665bef891e8972e1d3ce5bbc0d42a373346a2c3
git.kernel.orghttps://git.kernel.org/stable/c/8513411ec321942bd3cfed53d5bb700665c67d86
git.kernel.orghttps://git.kernel.org/stable/c/5071a1e606b30c0c11278d3c6620cd6a24724cf6
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/05/07/1

07 Fixed in

Debian 12

linux
Fixed in 6.1.135-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.12.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.