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CVE-2011-1907

22
FAUCET Score

CVE-2011-1907 describes a denial-of-service vulnerability affecting ISC BIND 9.8.x before version 9.8.0-P1 when Response Policy Zones (RPZ) RRset replacement is enabled. An unauthenticated remote attacker can trigger an assertion failure and daemon exit by sending a specially crafted RRSIG query. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with low attack complexity and no impact on confidentiality or integrity, but a partial impact on availability. There is no public exploit code available, nor is there evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
9.8.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.37%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0537 is in the 89th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2011-1907Important

bind: RRSIG queries can trigger server crash when using Response Policy Zones (RPZ)

May 5, 2011

References

secunia.com / advisories/44416
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/67297
isc.org / CVE-2011-1907
Vendor Advisory
securityfocus.com / archive/1/517900/100/0/threaded
securityfocus.com / bid/47734
securitytracker.com / id
vupen.com / english/advisories/2011/1183
Vendor Advisory