7.8

CVE-2025-37803: udmabuf: fix a buf size overflow issue during udmabuf creation

Modified
AliasesUBUNTU-CVE-2025-37803DEBIAN-CVE-2025-37803CGA-22xm-r68f-96vq
Published 08-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-37803 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 49 · Related 41
DLA-4178-1DLA-4193-1MGASA-2025-0182MGASA-2025-0183RHSA-2025:11571RHSA-2025:11572

Timeline

  1. 08-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: udmabuf: fix a buf size overflow issue during udmabuf creation by casting size_limit_mb to u64 when calculate pglimit.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu128 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)
Chainguard15 products
  • hyperv-daemons-6.12< 6.12.57-r0
  • linux-aws-6.12< 6.12.72-r0 | < 6.12.66-r0 | < 6.12.62-r0 | < 6.12.71-r0 | < 6.12.67-r0 | < 6.12.74-r1 | < 6.12.72-r1 | < 6.12.68-r1 | < 6.12.65-r1 | < 6.12.69-r0 | < 6.12.70-r0 | < 6.12.78-r0 | < 6.12.60-r4 | < 6.12.65-r0 | < 6.12.57-r0 | < 6.12.77-r1 | < 6.12.62-r2 | < 6.12.65-r2 | < 6.12.68-r0 | < 6.12.74-r0 | < 6.12.77-r0 | < 6.12.76-r0 | < 6.12.62-r1 | < 6.12.77-r2 | < 6.12.80-r0 | < 6.12.57-r2 | < 6.12.63-r0
  • linux-aws-6.12-boot-installed< 6.12.57-r0
  • linux-aws-6.12-fips-boot-installed< 6.12.57-r0
  • linux-aws-6.12-modules< 6.12.57-r0
Linux2 products
  • linux≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < e84a08fc7e25cdad5d9a3def42cc770ff711193f | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 13fe12c037b470321436deec393030c6153cfeb9 | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 373512760e13fdaa726faa9502d0f5be2abb3d33 | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 3f6c9d66e0f8eb9679b57913aa64b4d2266f6fbe | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < b2ff4e9c599b000833d16a917f519aa2e4a75de2 | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 29b65a3171a49c9b69f31035146be966cec40b7a | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 2b8419c6ecf69007dcff54ea0b9f0b215282c55a | ≥ fbb0de795078190a9834b3409e4b009cfb18a6d4, < 021ba7f1babd029e714d13a6bf2571b08af96d0f | 4.20
  • linux_kernel< 5.4.293 | ≥ 5.5, < 5.10.237 | ≥ 5.11, < 5.15.181 | ≥ 5.16, < 6.1.136 | ≥ 6.2, < 6.6.89 | ≥ 6.7, < 6.14.5 | 6.15:rc1
Debian1 product
  • linux< 6.1.137-1 | < 6.12.57-1 | < 6.16.3-1

4 vendors · 146 products

References

46 links
Show all 46 references