2.1

CVE-2013-4577: gnu grub

CVSS: 2.1v2.0LowModified
AliasesUBUNTU-CVE-2013-4577DEBIAN-CVE-2013-4577
Published 12-05-2014Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2013-4577 is a low (CVSS 2.1) vulnerability in gnu grub. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.9% of scored vulnerabilities.

Overall risk
8/100
0100
Minimal · default modelHow is this calculated?
CVSS score
2.1/10
010
Low · v2.0 (NVD)
EPSS score
0.38%
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. 12-05-2014
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

A certain Debian patch for GNU GRUB uses world-readable permissions for grub.cfg, which allows local users to obtain password hashes, as demonstrated by reading the password_pbkdf2 directive in the file.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.38%

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

Debian1 product
  • grub2< 2.00-20
Gnu1 product
Ubuntu1 product
  • grub2< 2.00-20

3 vendors · 3 products

References

8 links