The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a weak facility for producing a random number sequence (Unix rand), which makes it easier for remote attackers to spoof DNS responses by guessing certain values
Published Jun 11, 2007
5.0
MEDIUMCVSS 2.0
EPSS 1.19%
Description
The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a weak facility for producing a random number sequence (Unix rand), which makes it easier for remote attackers to spoof DNS responses by guessing certain values.
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:N/I:P/A:N
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 | 1.19% (0.01186) | 66.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.19% (0.01186) | 63.66th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.31% (0.00309) | 51.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00713) | 81.14th | v3 (v2023.03.01) |
| Apr 14, 2024 | 0.67% (0.00668) | 79.46th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.58% (0.00576) | 77.48th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.55% (0.00548) | 74.96th | v3 (v2023.03.01) |
| Nov 13, 2023 | 0.53% (0.00526) | 74.26th | v3 (v2023.03.01) |
| Oct 6, 2023 | 0.42% (0.00417) | 71.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.40% (0.00396) | 69.32th | 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 (4)
- http://cool.haxx.se/cvs.cgi/curl/ares/CHANGES?rev=HEAD&content-type=text/vnd.viewcvs-markup x_refsource_CONFIRM
- http://osvdb.org/37172 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/bid/24386 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34980 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/37172 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/bid/24386 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/34980 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.