5

CVE-2009-1755: nlnetlabs nsd Numeric Errors

CVSS: 5.0v2.0MediumModified
AliasesDEBIAN-CVE-2009-1755DSA-1803-1
Published 22-05-2009Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2009-1755 is a medium (CVSS 5.0) Numeric Errors vulnerability in nlnetlabs nsd. EPSS estimates a 3.16% chance of exploitation in the next 30 days, higher than 87.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
3.16%
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. 22-05-2009
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.16%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.16% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.16%

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

Debian2 products
  • nsd< 2.3.7-3 | < 2.3.6-1+etch1 | < 2.3.7-1.1+lenny1
  • nsd3< 3.0.7-3.lenny2
Nlnetlabs1 product
  • nsd2.0.0 | 2.0.1 | 2.0.2 | 2.1.0 | 2.1.1 | 2.1.2 | 2.1.3 | 2.1.4 | 2.1.5 | 2.3.7 | 3.2.1

2 vendors · 3 products

References

5 links