6.5

CVE-2009-0759: znc Code Injection

Modified
AliasesDEBIAN-CVE-2009-0759DSA-1735-1
Published 03-03-2009Last modified 07-08-2024

Vulnerability summary

CVE-2009-0759 is a medium (CVSS 6.5) Code Injection vulnerability in znc. EPSS estimates a 2.10% chance of exploitation in the next 30 days, higher than 81.5% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v2.0 (NVD)
EPSS score
2.10%
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. 03-03-2009
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Multiple CRLF injection vulnerabilities in webadmin in ZNC before 0.066 allow remote authenticated users to modify the znc.conf configuration file and gain privileges via CRLF sequences in the quit message and other vectors.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.10%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.10% on 22-09-2026

22-09-202622-10-2026

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

Debian1 product
  • znc< 0.045-3+etch2 | < 0.058-2+lenny1 | < 0.066-1
Znc1 product
  • znc≤ 0.062 | 0.056 | 0.058

2 vendors · 2 products

References

8 links