c-ares before 1.4.0 uses a predictable seed for the random number generator for the DNS Transaction ID field, which might allow remote attackers to spoof DNS responses by guessing the field value
Published Jun 11, 2007
7.5
HIGHCVSS 2.0
EPSS 1.40%
Description
c-ares before 1.4.0 uses a predictable seed for the random number generator for the DNS Transaction ID field, which might allow remote attackers to spoof DNS responses by guessing the field value.
Affected products
No data.
- 1.0
- 1.1
- 1.2
- 1.2.1
- 1.3
- 1.3.1
- 1.3.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.40% (0.01402) | 71.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.40% (0.01402) | 68.90th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.68% (0.00675) | 69.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.57% (0.01573) | 87.81th | v3 (v2023.03.01) |
| Apr 14, 2024 | 1.57% (0.01573) | 87.08th | v3 (v2023.03.01) |
| Jan 29, 2024 | 1.43% (0.01433) | 85.21th | v3 (v2023.03.01) |
| Dec 22, 2023 | 1.34% (0.01344) | 84.61th | v3 (v2023.03.01) |
| Nov 13, 2023 | 1.29% (0.01291) | 84.28th | v3 (v2023.03.01) |
| Jun 17, 2023 | 1.15% (0.01147) | 82.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.06% (0.01060) | 81.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://cool.haxx.se/cvs.cgi/curl/ares/CHANGES?rev=HEAD&content-type=text/vnd.viewcvs-markup x_refsource_CONFIRM
- http://osvdb.org/37171 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/25579 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://www.securityfocus.com/bid/24386 vdb-entryx_refsource_BIDPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34979 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://cool.haxx.se/cvs.cgi/curl/ares/CHANGES?rev=HEAD&content-type=text/vnd.viewcvs-markup | x_refsource_CONFIRM | |
| http://osvdb.org/37171 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/25579 | third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory | |
| http://www.securityfocus.com/bid/24386 | vdb-entryx_refsource_BIDPatch | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/34979 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.