CVE-2025-21772

HIGHNVD 7.87.8—

7.8

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 v3: 7.8
EG Score: 7.8(medium)
EPSS: 11.0%
KEV: Not listed

Published

February 27, 2025

Last Modified

May 12, 2026

Advisory Details (10)

Auto-updated May 12, 2026

Patch available.

generic Patch Available

[SECURITY] [DLA 4178-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

generic Patch Available

[SECURITY] [DLA 4102-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16b

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5

generic

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625

Patch Availability(30)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-tools-fips (5.15.0.140.80) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-gcp-edge (5.15.0.1083.92~20.04.1) @ focal	2026-05-21	ubuntu
ubuntu	linux-virtual-hwe-20.04-edge (5.15.0.140.135) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-gcp-lts-22.04 (5.15.0.1083.79) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-gcp-fips (5.15.0.1083.73) @ jammy	2026-05-21	ubuntu
ubuntu	linux-virtual-hwe-18.04-edge (5.4.0.216.208) @ focal	2026-05-21	ubuntu
ubuntu	linux-virtual-hwe-24.04-edge (6.11.0-26.26) @ oracular	2026-05-21	ubuntu
ubuntu	linux-xilinx-zynqmp-tools-5.4.0-1064 (5.4.0-1064.68) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-azure-fips (5.15.0.1089.74) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-azure-fips (5.4.0.1151.88) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-gke-5.15 (5.15.0.1081.80) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-gcp-fips (5.4.0.1149.91) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-nvidia-tegra-rt (5.15.0.1037.37) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-realtime (5.15.0.1084.88) @ jammy	2026-05-21	ubuntu
ubuntu	linux-virtual-hwe-18.04-edge (5.4.0.216.236~18.04.1) @ bionic	2026-05-21	ubuntu
ubuntu	linux-tools-aws (6.11.0-1014.15) @ oracular	2026-05-21	ubuntu
ubuntu	linux-tools-ibm-edge (5.4.0.1092.97~18.04.1) @ bionic	2026-05-21	ubuntu
ubuntu	linux-tools-kvm (5.4.0.1133.129) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-aws-fips (5.15.0.1084.80) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-oracle-edge (5.4.0.1144.154~18.04.1) @ bionic	2026-05-21	ubuntu
ubuntu	linux-tools-ibm-lts-20.04 (5.4.0.1092.121) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-bluefield (5.4.0.1105.101) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-oracle-64k (6.11.0-1016.17) @ oracular	2026-05-21	ubuntu
ubuntu	linux-tools-aws-edge (5.15.0.1084.91~20.04.1) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-aws-edge (5.4.0.1146.156~18.04.1) @ bionic	2026-05-21	ubuntu
ubuntu	linux-virtual-hwe-20.04-edge (5.15.0.142.152~20.04.1) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-aws-lts-20.04 (5.4.0.1146.143) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-fips (5.4.0.1120.117) @ focal	2026-05-21	ubuntu
ubuntu	linux-tools-lowlatency-hwe-22.04-edge (6.8.0-78.78.1~22.04.1) @ jammy	2026-05-21	ubuntu
ubuntu	linux-tools-ibm-lts-24.04 (6.8.0-1033.33) @ noble	2026-05-21	ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 14× in last 7d / 62× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-23 21:32 UTCEPSS rescore
2026-06-23 21:32 UTCEPSS rescore
2026-06-22 14:25 UTCEPSS rescore
2026-06-22 14:25 UTCEPSS rescore
2026-06-22 01:37 UTCOSV refresh
2026-06-21 14:56 UTCEPSS rescore
2026-06-21 14:56 UTCEPSS rescore
2026-06-21 01:59 UTCEPSS rescore
2026-06-21 01:59 UTCEPSS rescore
2026-06-19 19:25 UTCEPSS rescore
2026-06-19 19:25 UTCEPSS rescore
2026-06-18 17:52 UTCEPSS rescore
2026-06-18 17:52 UTCEPSS rescore
2026-06-17 17:52 UTCEPSS rescore
2026-06-16 17:52 UTCEPSS rescore
2026-06-16 17:52 UTCEPSS rescore
2026-06-15 17:48 UTCEPSS rescore
2026-06-14 23:17 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore
2026-06-12 23:11 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-10 22:18 UTCEPSS rescore
2026-06-10 13:22 UTCEPSS rescore
2026-06-08 14:16 UTCEPSS rescore
2026-06-08 14:16 UTCEPSS rescore

Show 57 more

2026-06-07 15:24 UTCEPSS rescore
2026-06-07 15:24 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-03 18:09 UTCOSV refresh
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 22:30 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore
2026-05-29 13:44 UTCEPSS rescore
2026-05-28 13:44 UTCEPSS rescore
2026-05-28 13:44 UTCEPSS rescore
2026-05-28 13:44 UTCEPSS rescore
2026-05-28 13:44 UTCEPSS rescore
2026-05-27 13:40 UTCEPSS rescore
2026-05-27 13:40 UTCEPSS rescore
2026-05-27 13:40 UTCEPSS rescore
2026-05-27 13:40 UTCEPSS rescore
2026-05-27 13:40 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-26 07:18 UTCEPSS rescore
2026-05-23 15:20 UTCEPSS rescore
2026-05-22 21:16 UTCEPSS rescore
2026-05-22 21:16 UTCEPSS rescore
2026-05-21 22:42 UTCEPSS rescore
2026-05-21 17:14 UTCEG score recompute
2026-05-21 17:14 UTCVendor advisory
2026-05-21 17:14 UTCGHSA enrichment
2026-05-21 02:36 UTCOSV refresh
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 22:37 UTCEPSS rescore
2026-05-20 11:21 UTCEPSS rescore
2026-05-20 11:21 UTCEPSS rescore
2026-05-20 11:21 UTCEPSS rescore
2026-05-20 11:21 UTCEPSS rescore
2026-05-20 11:21 UTCEPSS rescore
2026-05-18 21:31 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-21772?

CVE-2025-21772 is a high vulnerability published on February 27, 2025. 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 putdevsector(), since the preceding readpartsector() succeeded. If the partition table claims…

When was CVE-2025-21772 disclosed?

CVE-2025-21772 was first published in the National Vulnerability Database on February 27, 2025, with the most recent update on May 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-21772 actively exploited?

CVE-2025-21772 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-21772?

CVE-2025-21772 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2025-21772?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-21772, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-21772

Published

Last Modified

Advisory Details (10)

[SECURITY] [DLA 4178-1] linux security update

[SECURITY] [DLA 4102-1] linux-6.1 security update

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

Patch Availability(30)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-21772?

Same vendor

Same CWE

CVE-2025-21772

📅 Published

🔄 Last Modified

📋 Advisory Details (10)

[SECURITY] [DLA 4178-1] linux security update

[SECURITY] [DLA 4102-1] linux-6.1 security update

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

partitions: mac: fix handling of bogus partition table - kernel/git/stable/linux.git - Linux kernel stable tree

Patch Availability(30)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-21772?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

Advisory Details (10)

Frequently asked(5)

Related CVEs(same vendor + same CWE)