What is CVE-2022-23462?

CVE-2022-23462 is a medium-severity vulnerability in Softmotions Iowow, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2022-10-21.

How severe is CVE-2022-23462?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Buffer overflow in Softmotions Iowow

CVE-2022-23462

IOWOW is a C utility library and persistent key/value storage engine. Versions 1.4.15 and prior contain a stack buffer overflow vulnerability that allows for Denial of Service (DOS) when it parses scientific notation numbers present in JSON. A patch for this issue is available at commit a79d31e4cff1d5a08f665574b29fd885897a28fd in the `master` branch of the repository. There are no workarounds other than applying the patch.

Vulnerability class: Buffer Overflow

Published 2022-10-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Softmotions Iowow — versions 1.4.15

Weakness classification (CWE)

References

securitylab.github.com/advisories/GHSL-2022-066_iowow/ (Exploit, Third Party Advisory)
github.com/Softmotions/iowow/commit/a79d31e4cff1d5a08f665574b29fd885897a28fd (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-23462?: CVE-2022-23462 is a medium-severity vulnerability in Softmotions Iowow, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2022-10-21.
How severe is CVE-2022-23462?: Medium severity. CVSS v3 base score is 6.2 out of 10.