7.8

CVE-2025-21772: linux Out-of-bounds Write

CVSS: 7.8v3.1HighModified
AliasesSUSE-SU-2025:02393-1SUSE-SU-2025:02438-1UBUNTU-CVE-2025-21772
Published 27-02-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-21772 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 118 · Related 117
DLA-4102-1DLA-4178-1SUSE-SU-2025:01600-1SUSE-SU-2025:01919-1SUSE-SU-2025:01951-1SUSE-SU-2025:01967-1

Showing 100 of 119. Use Open JSON for the complete list.

Timeline

  1. 27-02-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: partitions: mac: fix handling of bogus partition table Fix several issues in partition probing: - The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded. - If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory. - We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

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

Ubuntu137 products
  • linuxAll versions (No fix recorded) | < 5.4.0-216.236 | < 5.15.0-140.150 | < 6.8.0-78.78
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1146.156 | < 5.15.0-1084.91 | < 6.8.0-1035.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < a3e77da9f843e4ab93917d30c314f0283e28c124 | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 213ba5bd81b7e97ac6e6190b8f3bc6ba76123625 | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 40a35d14f3c0dc72b689061ec72fc9b193f37d1f | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 27a39d006f85e869be68c1d5d2ce05e5d6445bf5 | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 92527100be38ede924768f4277450dfe8a40e16b | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 6578717ebca91678131d2b1f4ba4258e60536e9f | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 7fa9706722882f634090bfc9af642bf9ed719e27 | ≥ 02e2a5bfebe99edcf9d694575a75032d53fe1b73, < 80e648042e512d5a767da251d44132553fe04ae0 | 81a319c5c29913a23947f3d28513974682f3af03 | 34a906cd9f6445d9510841667eff0d980279ebf3 | 2a27f61bd411e564eb4651c18d225f6e9e1de534 | 69aad7e01c8e883e9d2f8dc5523bd419bd02d2aa | 7f4f03c4a1e9a4b9679feafe7625a780864a4e76 | ≥ 3.2.75, < 3.3 | ≥ 3.4.113, < 3.5 | ≥ 3.10.99, < 3.11 | ≥ 3.12.56, < 3.13 | ≥ 3.14.63, < 3.15 | 4.4
  • linux_kernel< 5.4.291 | ≥ 5.5, < 5.10.235 | ≥ 5.11, < 5.15.179 | ≥ 5.16, < 6.1.129 | ≥ 6.2, < 6.6.79 | ≥ 6.7, < 6.12.16 | ≥ 6.13, < 6.13.4 | 6.14:rc1 | 6.14:rc2
Suse2 products
  • kernel-livepatch-SLE15-SP5_Update_23&distro=SUSE Linux Enterprise Live Patching 15 SP5< 3-150500.2.1
  • kernel-livepatch-SLE15-SP5_Update_24&distro=SUSE Linux Enterprise Live Patching 15 SP5< 3-150500.2.1
Debian1 product
  • linux< 6.1.129-1 | < 6.12.16-1

4 vendors · 142 products

References

58 links
Show all 58 references