CVE-2016-5637

The restore_tqb_pixels function in libbpg 0.9.5 through 0.9.7 mishandles the transquant_bypass_enable_flag value, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write) via a crafted BPG image, related to a "type confusion" issue.

Published: 2016-07-15 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5637 is rated Moderate Risk (59.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.61%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-5637

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-26 0.51% 0.61% +0.10%
2 2025-12-16 0.38% 0.51% +0.14%
3 2025-03-30 — 0.38% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5637

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2016-5637

OS Trackers for CVE-2016-5637

vendor priority summary link
ubuntu medium CVE-2016-5637 medium priority: Ubuntu including 5 source packages (chromium-browser, ffmpeg, gst-libav1.0, oxide-qt, vlc), 120 status rows across 24 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 60, DNE 25, ignored 25, needs-triage 10. https://ubuntu.com/security/CVE-2016-5637

Affected software / configurations for CVE-2016-5637

Vendor Product Version Raw CPE
libbpg_project libbpg >= 0.9.5, <= 0.9.7 cpe:2.3:a:libbpg_project:libbpg:*:*:*:*:*:*:*:*

References for CVE-2016-5637

URL Tags
http://www.kb.cert.org/vuls/id/123799 Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/91726 Third Party Advisory VDB Entry
cvelogic Threat Intelligence