CVE-2014-8602
iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 32.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 32.16% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- nlnetlabs/unbound · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
EPSS moved from 32.2% on 13 October 2026 to 32.2% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.htmlThird Party Advisory
- http://unbound.net/downloads/patch_cve_2014_8602.diffPatch
- http://www.debian.org/security/2014/dsa-3097Third Party Advisory
- http://www.kb.cert.org/vuls/id/264212Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/71589
- http://www.ubuntu.com/usn/USN-2484-1Third Party Advisory
- https://unbound.net/downloads/CVE-2014-8602.txtPatch, Vendor Advisory
- http://cert.ssi.gouv.fr/site/CERTFR-2014-AVI-512/index.htmlThird Party Advisory
- http://unbound.net/downloads/patch_cve_2014_8602.diffPatch
- http://www.debian.org/security/2014/dsa-3097Third Party Advisory
- http://www.kb.cert.org/vuls/id/264212Third Party Advisory, US Government Resource
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/71589
- http://www.ubuntu.com/usn/USN-2484-1Third Party Advisory
- https://unbound.net/downloads/CVE-2014-8602.txtPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.