What is CVE-2014-4607?

CVE-2014-4607 is a high-severity vulnerability in Oberhumer Liblzo2, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2020-02-12.

How severe is CVE-2014-4607?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in Oberhumer Liblzo2

CVE-2014-4607

Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.

Vulnerability class: Integer Overflow

Published 2020-02-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.053 (92.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.053 · newest: 0.053 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html (Exploit, Third Party Advisory)
web.archive.org/web/20140701023922/http://www.oberhumer.com/opensource/lzo/ (Vendor Advisory)

Frequently asked questions

What is CVE-2014-4607?: CVE-2014-4607 is a high-severity vulnerability in Oberhumer Liblzo2, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2020-02-12.
How severe is CVE-2014-4607?: High severity. CVSS v3 base score is 8.8 out of 10.