CVE-2025-40780: Cache poisoning due to weak PRNG
ISC · BIND 9
Vendor fix available · Affected: ISC BIND 9 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 40% of scored CVEs
DescriptionCVE.org
In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- ISC · BIND 9from 9.16.0 up to and including 9.16.50; from 9.18.0 up to and including 9.18.39; from 9.20.0 up to and including 9.20.13; from 9.21.0 up to and including 9.21.12; from 9.16.8-S1 up to and including 9.16.50-S1; from 9.18.11-S1 up to and including 9.18.39-S1 and 1 more
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- ISC
- Published
- October 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-40780 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.