Predictable from Observable State The advisory has been revoked - it doesn't affect any version of package rv (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL10-RV-15705857
- published20 Mar 2026
- disclosed18 Mar 2026
Introduced: 18 Mar 2026
CVE-2026-23247 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
tcp: secure_seq: add back ports to TS offset
This reverts 28ee1b746f49 ("secure_seq: downgrade to per-host timestamp offsets")
tcp_tw_recycle went away in 2017.
Zhouyan Deng reported off-path TCP source port leakage via SYN cookie side-channel that can be fixed in multiple ways.
One of them is to bring back TCP ports in TS offset randomization.
As a bonus, we perform a single siphash() computation to provide both an ISN and a TS offset.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2448598
- https://access.redhat.com/security/cve/CVE-2026-23247
- https://git.kernel.org/stable/c/165573e41f2f66ef98940cf65f838b2cb575d9d1
- https://git.kernel.org/stable/c/46e5b0d7cf55821527adea471ffe52a5afbd9caf
- https://git.kernel.org/stable/c/eae2f14ab2efccdb7480fae7d42c4b0116ef8805
- https://git.kernel.org/stable/c/5da5662181ef8a251e3ba564903002c2e87de452
- https://git.kernel.org/stable/c/e873e8c16b2fb743a381a9e59c108e63512301ec
- https://git.kernel.org/stable/c/025f532d8c5cfac77845e50daab7f478b360f2ac