ISC BIND 9 through 9.5.0a5 uses a weak random number generator during generation of DNS query ids when answering resolver questions or sendi
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.
- Published
- Jul 24, 2007
- Updated
- Jun 16, 2026
- EPSS
- 13.1% · 96th percentile
- CWE
- —
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 4 / 30 · 13.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| isc | bind | cpe:2.3:a:isc:bind |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- isc bind9.0
- isc bind9.1
- isc bind9.2
- isc bind9.3
- isc bind9.4
- isc bind9.5
- isc bind9.5.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | bind9 | before 1:9.4.1-P1-1 | 1:9.4.1-P1-1 |
| Debian:3.1 | bind9 | before 1:9.2.4-1sarge3 | 1:9.2.4-1sarge3 |
| Debian:4.0 | bind9 | before 1:9.3.4-2etch1 | 1:9.3.4-2etch1 |
| openSUSE:Tumbleweed | bind | before 9.16.20-1.4 | 9.16.20-1.4 |
| Red Hat:enterprise_linux:2.1::as | bind | before 0:9.2.1-9.el2 | 0:9.2.1-9.el2 |
| Red Hat:enterprise_linux:2.1::as | bind-devel | before 0:9.2.1-9.el2 | 0:9.2.1-9.el2 |
| Red Hat:enterprise_linux:2.1::as | bind-utils | before 0:9.2.1-9.el2 | 0:9.2.1-9.el2 |
| Red Hat:enterprise_linux:3::as | bind | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:3::as | bind-chroot | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:3::as | bind-debuginfo | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:3::as | bind-devel | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:3::as | bind-libs | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:3::as | bind-utils | before 20:9.2.4-21.el3 | 20:9.2.4-21.el3 |
| Red Hat:enterprise_linux:4::as | bind | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:4::as | bind-chroot | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:4::as | bind-debuginfo | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:4::as | bind-devel | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:4::as | bind-libs | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:4::as | bind-utils | before 20:9.2.4-27.0.1.el4 | 20:9.2.4-27.0.1.el4 |
| Red Hat:enterprise_linux:5::client | bind-libs | before 30:9.3.3-9.0.1.el5 | 30:9.3.3-9.0.1.el5 |
| Red Hat:enterprise_linux:5::client | bind-sdb | before 30:9.3.3-9.0.1.el5 | 30:9.3.3-9.0.1.el5 |
| Red Hat:enterprise_linux:5::client | bind-utils | before 30:9.3.3-9.0.1.el5 | 30:9.3.3-9.0.1.el5 |
| Red Hat:enterprise_linux:5::client_workstation | bind | before 30:9.3.3-9.0.1.el5 | 30:9.3.3-9.0.1.el5 |
| Red Hat:enterprise_linux:5::client_workstation | bind-chroot | before 30:9.3.3-9.0.1.el5 | 30:9.3.3-9.0.1.el5 |
+4
Same product
isc: all recordsOther highest-scoring records for the same primary product.
- CVE-2015-5477named in ISC BIND 9.x before 9.9.7-P2 and 9.10.x before 9.10.2-P3 allows remote attackers to cause a denial of service (REQUIRE assertion fa58Plan
- CVE-2016-2776buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x before 9.11.0rc3 does not properly construct responses,57Plan
- CVE-2016-1286named in ISC BIND 9.x before 9.9.8-P4 and 9.10.x before 9.10.3-P4 allows remote attackers to cause a denial of service (assertion failure an53Plan
- CVE-2020-8625A vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack51Plan
- CVE-2020-8617A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c51Plan
- CVE-2001-0010Buffer overflow in transaction signature (TSIG) handling code in BIND 8 allows remote attackers to gain root privileges.49Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:bind9 | 1:9.4.1-P1-1 · Debian:12 | Package registry (OSV) |
| opensuse:bind | 9.16.20-1.4 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:bind | 0:9.2.1-9.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:bind-chroot | 20:9.2.4-21.el3 · Red Hat:enterprise_linux:3::as | Package registry (OSV) |
| red hat:bind-debuginfo | 20:9.2.4-21.el3 · Red Hat:enterprise_linux:3::as | Package registry (OSV) |
| red hat:bind-devel | 0:9.2.1-9.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:bind-libbind-devel | 30:9.3.3-9.0.1.el5 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
| red hat:bind-libs | 20:9.2.4-21.el3 · Red Hat:enterprise_linux:3::as | Package registry (OSV) |
| red hat:bind-sdb | 30:9.3.3-9.0.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:bind-utils | 0:9.2.1-9.el2 · Red Hat:enterprise_linux:2.1::as | Package registry (OSV) |
| red hat:caching-nameserver | 30:9.3.3-9.0.1.el5 · Red Hat:enterprise_linux:5::client_workstation | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2007-08-07 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+13 d
- TodaySep 30, 2026+7008 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- none
- Integrity
- P · data or configuration can be modified
- Availability
- none
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- P
- Availability impact
- None
Weakness class (CWE)
—
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- ftp://aix.software.ibm.com/aix/efixes/security/README
- ftp://patches.sgi.com/support/free/security/advisories/20070801-01-P.asc
- docs.info.apple.com/article.html?artnum=307041
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01123426
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01154600
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01174368
- lists.apple.com/archives/security-announce/2007/Nov/msg00002.html
- marc.info/?l=bugtraq&m=141879471518471&w=2
- secunia.com/advisories/26148
- secunia.com/advisories/26152
- secunia.com/advisories/26160
- secunia.com/advisories/26180
- secunia.com/advisories/26195
- secunia.com/advisories/26217
- secunia.com/advisories/26227
- secunia.com/advisories/26231
- secunia.com/advisories/26236
- secunia.com/advisories/26261
- secunia.com/advisories/26308
- secunia.com/advisories/26330
Vendor advisories and official records. Exploit/PoC links are deliberately left out.