How severe is CVE-2007-2926?

CVE-2007-2926 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-2926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2926?

CVE-2007-2926 primarily affects Isc Bind. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-2926?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-2926 published?

CVE-2007-2926 was published on 2007-07-24 and last updated on 2026-06-16.

CVE-2007-2926

CVE-2007-2926 is a medium-severity vulnerability in Isc Bind with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Isc Bind
Published: 2007-07-24
Last modified: 2026-06-16

Description

ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning.

Frequently asked questions

What is CVE-2007-2926?: ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sending NOTIFY messages to slave name servers, which makes it easier for remote attackers to guess the next query id and perform DNS cache poisoning.
How severe is CVE-2007-2926?: CVE-2007-2926 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-2926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2926?: CVE-2007-2926 primarily affects Isc Bind. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2926?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2926 published?: CVE-2007-2926 was published on 2007-07-24 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.5:*:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.5.0:*:*:*:*:*:*:*

More vulnerabilities in Isc Bind

CVE-2008-0122 — Critical (CVSS 10.0): Off-by-one error in the inet_network function in libbind in ISC BIND 9.4.2 and earlier, as used in libc in FreeBSD 6.2…
CVE-2001-0011 — Critical (CVSS 10.0): Buffer overflow in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
CVE-2001-0013 — Critical (CVSS 10.0): Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
CVE-2001-0010 — Critical (CVSS 10.0): Buffer overflow in transaction signature (TSIG) handling code in BIND 8 allows remote attackers to gain root privileges.
CVE-2000-1029 — Critical (CVSS 10.0): Buffer overflow in host command allows a remote attacker to execute arbitrary commands via a long response to an AXFR…
CVE-1999-0837 — Critical (CVSS 10.0): Denial of service in BIND by improperly closing TCP sessions via so_linger.

All CVEs affecting Isc Bind →