Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U N N H 5.5 .0016 6.2 —
AFFECTED Product Versions Fixed Linux b7b1bfce0bb68bd8f6e62a28295922785cc63781 – — Linux 3.11 – 4.14.322
TIMELINE Sep 15 Reserved by Linux Sep 15 Published (CNA: Linux) Aug 4 RESCORED — CVE-2023-53189 (Linux). CVSS 7.8 → 5.5 (NVD).
In the Linux kernel, the following vulnerability has been resolved: ipv6/addrconf: fix a potential refcount underflow for idev Now in addrconf_mod_rs_timer(), reference idev depends on whether rs_timer is not pending. Then modify rs_timer timeout. There is a time gap in [1], during which if the pending rs_timer becomes not pending. It will miss to hold idev, but the rs_timer is activated. Thus rs_timer callback function addrconf_rs_timer() will be executed and put idev later without holding idev. A refcount underflow issue for idev can be caused by this. if (!timer_pending(&idev->rs_timer)) in6_dev_hold(idev); <--------------[1] mod_timer(&idev->rs_timer, jiffies + when); To fix the issue, hold idev if mod_timer() return 0.
| Date | Event | Detail |
|---|---|---|
| September 15, 2025 | Reserved | Reserved by Linux |
| September 15, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2023-53189 (Linux). CVSS 7.8 → 5.5 (NVD). |
Authoritative record: CVE-2023-53189 at cve.org
Vendors: linux
Weaknesses: CWE-191
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-53189 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.