7.5

CVE-2025-37820: debian debian_linux NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2025-37820DEBIAN-CVE-2025-37820
Published 08-05-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-37820 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.40%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 30
DLA-4193-1MGASA-2025-0182MGASA-2025-0183SUSE-SU-2025:01919-1SUSE-SU-2025:01951-1SUSE-SU-2025:01964-1

Timeline

  1. 08-05-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() The function xdp_convert_buff_to_frame() may return NULL if it fails to correctly convert the XDP buffer into an XDP frame due to memory constraints, internal errors, or invalid data. Failing to check for NULL may lead to a NULL pointer dereference if the result is used later in processing, potentially causing crashes, data corruption, or undefined behavior. On XDP redirect failure, the associated page must be released explicitly if it was previously retained via get_page(). Failing to do so may result in a memory leak, as the pages reference count is not decremented.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

32%

Versus all other CVEs

30-day change

+0.02 pp

From 0.38% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu129 products
  • linuxAll versions (No fix recorded) | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < 5b83d30c63f9964acb1bc63eb8e670b9e0d2c240 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < cefd8a2e2de46209ce66e6d30c237eb59b6c5bfa | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < d6a9c4e6f9b3ec3ad98468c950ad214af8a2efb9 | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < eefccd889df3b49d92e7349d94c4aa7e1ba19f6c | ≥ 6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c, < cc3628dcd851ddd8d418bf0c897024b4621ddc92 | 5.9
  • linux_kernel≥ 5.9, < 6.1.136 | ≥ 6.2, < 6.6.89 | ≥ 6.7, < 6.12.26 | ≥ 6.13, < 6.14.5 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3

3 vendors · 133 products

References

29 links
Show all 29 references