CVE-2025-37844: debian debian_linux NULL Pointer Dereference
CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-37844DEBIAN-CVE-2025-37844
Published 09-05-2025Last modified 23-05-2026
Vulnerability summary
CVE-2025-37844 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.30%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 41 · Related 39DLA-4178-1DLA-4193-1SUSE-SU-2025:02249-1SUSE-SU-2025:02254-1SUSE-SU-2025:02307-1SUSE-SU-2025:02333-1SUSE-SU-2025:02334-1SUSE-SU-2025:02335-1SUSE-SU-2025:02538-1SUSE-SU-2025:02923-1SUSE-SU-2025:20413-1SUSE-SU-2025:20421-1USN-7594-1USN-7594-2USN-7594-3USN-7654-1USN-7654-2USN-7654-3USN-7654-4USN-7654-5USN-7655-1USN-7686-1USN-7711-1USN-7712-1USN-7712-2USN-8028-1USN-8028-2USN-8028-3USN-8028-4USN-8028-5USN-8028-6USN-8028-7USN-8028-8USN-8031-1USN-8031-2USN-8031-3USN-8052-1USN-8052-2USN-8074-1USN-8074-2USN-8126-1
Timeline
- 09-05-2025PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: avoid NULL pointer dereference in dbg call cifs_server_dbg() implies server to be non-NULL so move call under condition to avoid NULL pointer dereference. Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.30%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
+0.01 pp
From 0.28% on 18-09-2026
18-09-202618-10-2026
EPSS score0.30%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu126 products
- linux< 5.15.0-144.157 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1088.95 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.135-1 | < 6.12.25-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3 | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < 9c9000cb91b986eb7f75835340c67857ab97c09b | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < b2a1833e1c63e2585867ebeaf4dd41494dcede4b | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < 864ba5c651b03830f36f0906c21af05b15c1aaa6 | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < e0717385f5c51e290c2cd2ad4699a778316b5132 | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < 20048e658652e731f5cadf4a695925e570ca0ff9 | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < 6c14ee6af8f1f188b668afd6d003f7516a507b08 | ≥ e79b0332ae06b4895dcecddf4bbc5d3917e9383c, < b4885bd5935bb26f0a414ad55679a372e53f9b9b | 53e83828d352304fec5e19751f38ed8c65e6ec2f | ≥ 5.6.7, < 5.7 | 5.7
- linux_kernel≥ 5.6.7, < 5.10.237 | ≥ 5.11, < 5.15.181 | ≥ 5.16, < 6.1.135 | ≥ 6.2, < 6.6.88 | ≥ 6.7, < 6.12.24 | ≥ 6.13, < 6.13.12 | ≥ 6.14, < 6.14.3
3 vendors · 130 products
