CVE-2013-5661: isc bind Authentication Bypass by Spoofing
CVSS: 5.9v3.1MediumModified
Published 05-11-2019Last modified 06-08-2024
Vulnerability summary
CVE-2013-5661 is a medium (CVSS 5.9) Authentication Bypass by Spoofing vulnerability in isc bind. EPSS estimates a 3.45% chance of exploitation in the next 30 days, higher than 88.8% of scored vulnerabilities.
CVSS score
5.9/10
010
Medium · v3.1 (NVD)EPSS score
3.45%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 05-11-2019PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Cache Poisoning issue exists in DNS Response Rate Limiting.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesSingle source
Low 2.6Preferred score · NVD (NIST)
AV:N/AC:H/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
3.45%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
0.00 pp
From 3.45% on 18-09-2026
18-09-202618-10-2026
EPSS score3.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Isc1 product
- bind≥ 9.8.0, ≤ 9.9.0
Nic1 product
- knot_resolver< 1.3.0
Nlnetlabs1 product
- nsd3.2.15
Redhat1 product
- enterprise_linuxEOL6.0 | 7.0
4 vendors · 4 products