What is CVE-2023-5590?

CVE-2023-5590 is a high-severity vulnerability in Selenium, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2023-10-15.

How severe is CVE-2023-5590?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Selenium

CVE-2023-5590

NULL Pointer Dereference in GitHub repository seleniumhq/selenium prior to 4.14.0.

Published 2023-10-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Selenium
Seleniumhq Seleniumhq/selenium — versions unspecified

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

huntr.dev/bounties/e268cd68-4f34-49bd-878b-82b96dcc0c99 (Exploit, Patch, Third Party Advisory)
github.com/seleniumhq/selenium/commit/023a0d52f106321838ab1c0997e76693f4dcbdf6 (Patch)

Frequently asked questions

What is CVE-2023-5590?: CVE-2023-5590 is a high-severity vulnerability in Selenium, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2023-10-15.
How severe is CVE-2023-5590?: High severity. CVSS v3 base score is 7.5 out of 10.