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CVE-1999-0024

19
FAUCET Score

CVE-1999-0024 describes a DNS cache poisoning vulnerability within older BIND implementations where predictable query IDs allow attackers to spoof DNS responses, affecting legacy products from vendors like ISC, Sun, and IBM. This Medium severity issue (CVSS 5.0) is exploitable via a network vector with low complexity and no authentication, potentially resulting in a partial loss of data integrity. Intelligence indicates no current active exploitation or available proof-of-concept code in major repositories, and the vulnerability remains inactive on the CISA Known Exploited Vulnerabilities list.

Impacted Technologies

VendorProductVersion(s)CPE
4.9.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:4.9.5:*:*:*:*:*:*:*
8.1CPE matchmatch criteria
cpe:2.3:a:isc:bind:8.1:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:bsdi:bsd_os:2.1:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:bsdi:bsd_os:3.0:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:o:ibm:aix:4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

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

Exploit Intelligence

EPSS Score
4.93%
Probability of exploitation in next 30 days
EPSS Percentile
91.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0493 is in the 88th percentile among its peer group of 23,690 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

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/CVE-1999-0024