7.8

CVE-2021-35269: debian debian_linux Out-of-bounds Write

Modified
AliasesUBUNTU-CVE-2021-35269DEBIAN-CVE-2021-35269
Published 07-09-2021Last modified 09-07-2026

Vulnerability summary

CVE-2021-35269 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 41.2% 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 (NVD)
EPSS score
0.48%
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 11 · Related 7
DLA-2819-1DSA-4971-1MGASA-2022-0001OPENSUSE-SU-2021:1244-1OPENSUSE-SU-2021:2971-1OPENSUSE-SU-2024:11101-1

Timeline

  1. 07-09-2021
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute from the MFT is setup in the function ntfs_attr_setup_flag, a heap buffer overflow can occur allowing for code execution and escalation of privileges.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.48% 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.

Debian2 products
Fedoraproject1 product
Tuxera1 product
Ubuntu1 product
  • ntfs-3g< 1:2013.1.13AR.1-2ubuntu2+esm1 | < 1:2015.3.14AR.1-1ubuntu0.3+esm1 | < 1:2017.3.23-2ubuntu0.18.04.3 | < 1:2017.3.23AR.3-3ubuntu1.1 | < 1:2017.3.23AR.3-3ubuntu5

4 vendors · 5 products

References

15 links
Show all 15 references