Unscored severity · published May 31, 2011
CVE-2011-1922
daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service…
–
CVSS
7.1%
EPSS
No
On KEV
Description
daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.
Exploitation
Is it being used?
Exploit prediction (EPSS)7.1% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UN
Unbound · Nlnetlabs
1.0.0; 1.0.1; 1.0.2; 1.1.0; 1.1.1; 1.2.0; +16 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-1922
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-1922
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061243.html
osvdb.org
http://osvdb.org/72750
secunia.com
http://secunia.com/advisories/44865
Patch
http://unbound.nlnetlabs.nl/downloads/CVE-2011-1922.txt
Patch
http://www.kb.cert.org/vuls/id/531342
www.securityfocus.com
http://www.securityfocus.com/bid/47986
More from Unbound
10.0
CVE-2026-42960
Possible cache poisoning via promiscuous records for the authority section
9.8
CVE-2026-82717
CNAME synthesis could lead to heap corruption
9.8
CVE-2026-81642
Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY
9.8
CVE-2026-33278
Possible arbitrary code execution during DNSSEC validation
9.8
CVE-2019-25042
Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy
