7.1

CVE-2021-46965: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access

Analyzed
AliasesUBUNTU-CVE-2021-46965DEBIAN-CVE-2021-46965
Published 27-02-2024Last modified 11-05-2026

Vulnerability summary

CVE-2021-46965 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.23%
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

Timeline

  1. 27-02-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access Cast &data to (char *) in order to avoid unintentionally accessing the stack. Notice that data is of type u32, so any increment to &data will be in the order of 4-byte chunks, and this piece of code is actually intended to be a byte offset. Addresses-Coverity-ID: 1497765 ("Out-of-bounds access")

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% 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.

Ubuntu62 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ b3e79e7682e075326df8041b826b03453acacd0a, < 34ec706bf0b7c4ca249a729c1bcb91f706c7a7be | ≥ b3e79e7682e075326df8041b826b03453acacd0a, < 4e4ebb827bf09311469ffd9d0c14ed40ed9747aa | ≥ b3e79e7682e075326df8041b826b03453acacd0a, < 4d786870e3262ec098a3b4ed10b895176bc66ecb | ≥ b3e79e7682e075326df8041b826b03453acacd0a, < 683313993dbe1651c7aa00bb42a041d70e914925 | 5.10
  • linux_kernel≥ 5.10, < 5.10.36 | ≥ 5.11, < 5.11.20 | ≥ 5.12, < 5.12.3
Debian1 product
  • linux< 5.10.38-1

3 vendors · 65 products

References

8 links