In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(), the variable limit is caculated by adding sk_rcvbuf, sk_sndbuf and 64 * 1024, it may exceed the max value of int and overflow. This patch reduces the limit budget by halving the sndbuf to solve this issue since ACK packets are much smaller than the payload.
Conclusion & alert: CVE-2022-50865 is rated Low Risk (6.5/100): low exploitation likelihood (EPSS 0.17%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.17% | +0.15% |
| 2 | 2025-12-31 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
No CVSS data in dataset for this CVE.
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-50865 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-50865 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-50865 |
suse
|
medium | CVE-2022-50865 severity moderate: SUSE including 55 source package names (bpftool-4.18.0-553.100.1.el8_10, cluster-md-kmp-default, …), 181 product×package rows across 32 product lines (SUSE Liberty Linux 8, SUSE Linux Enterprise High Availability Extension 15 SP6, … (32 product lines)): Known Not Affected 138, Fixed 43. | https://www.suse.com/security/cve/CVE-2022-50865/ |
ubuntu
|
medium | CVE-2022-50865 medium priority: Ubuntu including 157 source packages (linux, linux-allwinner-5.19, …), 1405 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1010, ignored 174, released 127, not-affected 78, needed 15, needs-triage 1. | https://ubuntu.com/security/CVE-2022-50865 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||