What is CVE-2017-8339?

CVE-2017-8339 is a medium-severity vulnerability in Watchguard Panda Antivirus, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2017-04-30.

How severe is CVE-2017-8339?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Watchguard Panda Antivirus

CVE-2017-8339

PSKMAD.sys in Panda Free Antivirus 18.0 allows local users to cause a denial of service (BSoD) via a crafted DeviceIoControl request to \\.\PSMEMDriver.

Vulnerability class: Buffer Overflow

Published 2017-04-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Watchguard Panda Antivirus — versions 18.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.exploit-db.com/exploits/41945/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.securityfocus.com/bid/98367 (VDB Entry, Third Party Advisory, vdb-entry)
saptech-erp.com.au/resources/panda_bsod.zip (Broken Link)
www.securityfocus.com/bid/98367/info (Third Party Advisory, VDB Entry)

Frequently asked questions

What is CVE-2017-8339?: CVE-2017-8339 is a medium-severity vulnerability in Watchguard Panda Antivirus, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2017-04-30.
How severe is CVE-2017-8339?: Medium severity. CVSS v3 base score is 5.5 out of 10.