7.5

CVE-2011-3327: quagga

CVSS: 7.5v2.0HighModified
Published 10-10-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-3327 is a high (CVSS 7.5) vulnerability in quagga. EPSS estimates a 7.61% chance of exploitation in the next 30 days, higher than 94.4% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
7.61%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3

Timeline

  1. 10-10-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Heap-based buffer overflow in the ecommunity_ecom2str function in bgp_ecommunity.c in bgpd in Quagga before 0.99.19 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by sending a crafted BGP UPDATE message over IPv4.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

7.61%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 7.61% on 18-09-2026

18-09-202618-10-2026
EPSS score
7.61%

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

Quagga1 product
  • quagga≤ 0.99.18 | 0.95 | 0.96 | 0.96.1 | 0.96.2 | 0.96.3 | 0.96.4 | 0.96.5 | 0.97.0 | 0.97.1 | 0.97.2 | 0.97.3 | 0.97.4 | 0.97.5 | 0.98.0 | 0.98.1 | 0.98.2 | 0.98.3 | 0.98.4 | 0.98.5 | 0.98.6 | 0.99.1 | 0.99.2 | 0.99.3 | 0.99.4 | 0.99.5 | 0.99.6 | 0.99.7 | 0.99.8 | 0.99.9 | 0.99.10 | 0.99.11 | 0.99.12 | 0.99.13 | 0.99.14 | 0.99.15 | 0.99.16 | 0.99.17

1 vendor · 1 product

References

16 links
Show all 16 references