CVE-2017-8370 — IrfanView version 4

IrfanView version 4.44 (32bit) with FPX Plugin 4.45 allows remote attackers to execute arbitrary code or cause a denial of service (Heap Corruption and application crash) in processing a FlashPix (.FPX) file, a different vulnerability than CVE-2017-7721.

01What is this vulnerability?

IrfanView version 4.44 (32bit) with FPX Plugin 4.45 allows remote attackers to execute arbitrary code or cause a denial of service (Heap Corruption and application crash) in processing a FlashPix (.FPX) file, a different vulnerability than CVE-2017-7721.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2017-07-05T20:29:02.887
• Last modified: 2026-05-13T00:24:29.033

09References

• www.irfanview.com — http://www.irfanview.com/plugins.htm
• github.com — https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-8370
• www.irfanview.com — http://www.irfanview.com/plugins.htm
• github.com — https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-8370