ISC BIND 9.0.x, 9.1.x, 9.2.0 up to 9.2.7, 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (exit) via a type * (ANY) DNS query response that contains multiple RRsets, which triggers an assertion error, aka the "DNSSEC Validation" vulnerability.
Conclusion & alert: CVE-2007-0494 is rated Moderate Risk (47.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 41.54%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-05 | 45.60% | 41.54% | -4.06% |
| 2 | 2025-09-13 | 44.73% | 45.60% | +0.87% |
| 3 | 2025-07-22 | — | 44.73% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
medium | CVE-2007-0494 medium priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-0494 |
gentoo
|
normal | CVE-2007-0494: 1 GLSA(s) (200702-06), 1 atom(s) (net-dns/bind); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-0494 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2007-0494 |
ubuntu
|
medium | CVE-2007-0494 medium priority: Ubuntu including 1 source packages (bind9), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2007-0494 |
: Syccessful exploitation requires that the victim has enabled dnssec validation in named.conf by specifying trusted-keys.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| isc | bind | 9.0 | cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc1:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc2:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc3:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc4:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc5:*:*:*:*:*:* |
| isc | bind | 9.0.0 | cpe:2.3:a:isc:bind:9.0.0:rc6:*:*:*:*:*:* |
| isc | bind | 9.0.1 | cpe:2.3:a:isc:bind:9.0.1:*:*:*:*:*:*:* |
| isc | bind | 9.0.1 | cpe:2.3:a:isc:bind:9.0.1:rc1:*:*:*:*:*:* |
| isc | bind | 9.0.1 | cpe:2.3:a:isc:bind:9.0.1:rc2:*:*:*:*:*:* |
| isc | bind | 9.1 | cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:* |
| isc | bind | 9.1.0 | cpe:2.3:a:isc:bind:9.1.0:rc1:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:*:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc1:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc2:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc3:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc4:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc5:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc6:*:*:*:*:*:* |
| isc | bind | 9.1.1 | cpe:2.3:a:isc:bind:9.1.1:rc7:*:*:*:*:*:* |
| isc | bind | 9.1.2 | cpe:2.3:a:isc:bind:9.1.2:*:*:*:*:*:*:* |
| isc | bind | 9.1.2 | cpe:2.3:a:isc:bind:9.1.2:rc1:*:*:*:*:*:* |
| isc | bind | 9.1.3 | cpe:2.3:a:isc:bind:9.1.3:*:*:*:*:*:*:* |
| isc | bind | 9.1.3 | cpe:2.3:a:isc:bind:9.1.3:rc1:*:*:*:*:*:* |
| isc | bind | 9.1.3 | cpe:2.3:a:isc:bind:9.1.3:rc2:*:*:*:*:*:* |
| isc | bind | 9.1.3 | cpe:2.3:a:isc:bind:9.1.3:rc3:*:*:*:*:*:* |
| isc | bind | 9.2 | cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:*:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:a1:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:a2:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:a3:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:b1:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:b2:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc1:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc10:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc2:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc3:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc4:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc5:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc6:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc7:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc8:*:*:*:*:*:* |
| isc | bind | 9.2.0 | cpe:2.3:a:isc:bind:9.2.0:rc9:*:*:*:*:*:* |
| isc | bind | 9.2.1 | cpe:2.3:a:isc:bind:9.2.1:*:*:*:*:*:*:* |
| isc | bind | 9.2.1 | cpe:2.3:a:isc:bind:9.2.1:rc1:*:*:*:*:*:* |
| isc | bind | 9.2.1 | cpe:2.3:a:isc:bind:9.2.1:rc2:*:*:*:*:*:* |
| isc | bind | 9.2.2 | cpe:2.3:a:isc:bind:9.2.2:*:*:*:*:*:*:* |
| isc | bind | 9.2.2 | cpe:2.3:a:isc:bind:9.2.2:p2:*:*:*:*:*:* |
| isc | bind | 9.2.2 | cpe:2.3:a:isc:bind:9.2.2:p3:*:*:*:*:*:* |
| isc | bind | 9.2.2 | cpe:2.3:a:isc:bind:9.2.2:rc1:*:*:*:*:*:* |
| isc | bind | 9.2.3 | cpe:2.3:a:isc:bind:9.2.3:*:*:*:*:*:*:* |
| isc | bind | 9.2.3 | cpe:2.3:a:isc:bind:9.2.3:rc1:*:*:*:*:*:* |
| isc | bind | 9.2.3 | cpe:2.3:a:isc:bind:9.2.3:rc2:*:*:*:*:*:* |
| isc | bind | 9.2.3 | cpe:2.3:a:isc:bind:9.2.3:rc3:*:*:*:*:*:* |
| isc | bind | 9.2.3 | cpe:2.3:a:isc:bind:9.2.3:rc4:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:*:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc2:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc3:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc4:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc5:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc6:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc7:*:*:*:*:*:* |
| isc | bind | 9.2.4 | cpe:2.3:a:isc:bind:9.2.4:rc8:*:*:*:*:*:* |
| isc | bind | 9.2.5 | cpe:2.3:a:isc:bind:9.2.5:*:*:*:*:*:*:* |
| isc | bind | 9.2.5 | cpe:2.3:a:isc:bind:9.2.5:b2:*:*:*:*:*:* |
| isc | bind | 9.2.5 | cpe:2.3:a:isc:bind:9.2.5:rc1:*:*:*:*:*:* |
| isc | bind | 9.2.6 | cpe:2.3:a:isc:bind:9.2.6:*:*:*:*:*:*:* |
| isc | bind | 9.2.6 | cpe:2.3:a:isc:bind:9.2.6:rc1:*:*:*:*:*:* |
| isc | bind | 9.3 | cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:*:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:b2:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:b3:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:b4:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:rc1:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:rc2:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:rc3:*:*:*:*:*:* |
| isc | bind | 9.3.0 | cpe:2.3:a:isc:bind:9.3.0:rc4:*:*:*:*:*:* |
| isc | bind | 9.3.1 | cpe:2.3:a:isc:bind:9.3.1:*:*:*:*:*:*:* |
| isc | bind | 9.3.1 | cpe:2.3:a:isc:bind:9.3.1:b2:*:*:*:*:*:* |
| isc | bind | 9.3.1 | cpe:2.3:a:isc:bind:9.3.1:rc1:*:*:*:*:*:* |