7.8

CVE-2021-26567: faad2_project faad2 Stack-based Buffer Overflow

CVSS: 7.8v3.1HighModified
Published 26-02-2021Last modified 16-09-2024

Vulnerability summary

CVE-2021-26567 is a high (CVSS 7.8) Stack-based Buffer Overflow vulnerability in faad2_project faad2. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
1.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-02-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.13%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.13% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.13%

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

Synology4 products
Faad2_project1 product
Github/knik01 product
  • faad2≥ unspecified, < 2.2.7.1

3 vendors · 6 products

References

2 links