CVE-2017-12652 [Critical] | Input Validation Bypass in Libpng

CVE-2017-12652 is rated Moderate Risk (64/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.63%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-18	0.52%	0.63%	+0.10%
2	2026-05-11	0.64%	0.52%	-0.11%
3	2026-01-16	—	0.64%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-18

0.52%

0.63%

+0.10%

2026-05-11

0.64%

0.52%

-0.11%

2026-01-16

—

0.64%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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.	3.9	5.9	[email protected]
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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.	3.9	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0
7.5	2.0	HIGH	`AV:N/AC:L/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:L) Exploitation conditions are straightforward and predictable. 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.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.

3.9

5.9

[email protected]

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.

3.9

5.9

134c704f-9b21-4f2e-91b3-4a467353bcc0

7.5

2.0

HIGH

AV:N/AC:L/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:L): Exploitation conditions are straightforward and predictable.
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.

10.0

6.4

[email protected]

OS Trackers for CVE-2017-12652

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2017-12652 not yet assigned priority: Debian including 1 source packages (libpng1.6), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2017-12652
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2017-12652
`suse`	low	—	https://www.suse.com/security/cve/CVE-2017-12652/
`ubuntu`	low	CVE-2017-12652 low priority: Ubuntu including 5 source packages (chromium-browser, firefox, libpng, libpng1.6, thunderbird), 95 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 60, DNE 23, ignored 4, needs-triage 4, released 3, needed 1.	https://ubuntu.com/security/CVE-2017-12652

Affected software / configurations for CVE-2017-12652

Vendor	Product	Version	Raw CPE
libpng	libpng	< 1.6.32	cpe:2.3:a:libpng:libpng::::::::
netapp	active_iq_unified_manager	—	cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vsphere::

References for CVE-2017-12652

URL	Tags
http://www.securityfocus.com/bid/109269	Broken Link Third Party Advisory VDB Entry
https://github.com/glennrp/libpng/blob/df7e9dae0c4aac63d55361e35709c864fa1b8363/ANNOUNCE	Release Notes Third Party Advisory
https://github.com/pnggroup/libpng/commit/347538efbdc21b8df684ebd92d37400b3ce85d55
https://security.netapp.com/advisory/ntap-20220506-0003/	Third Party Advisory
https://support.f5.com/csp/article/K88124225	Third Party Advisory
https://support.f5.com/csp/article/K88124225?utm_source=f5support&utm_medium=RSS
https://support.f5.com/csp/article/K88124225?utm_source=f5support&amp%3Butm_medium=RSS

URL

CVE-2017-12652

Exploit prediction scoring system (EPSS) score for CVE-2017-12652

Common vulnerability scoring system (CVSS) metrics for CVE-2017-12652

Weakness enumeration for CVE-2017-12652

OS Trackers for CVE-2017-12652

Affected software / configurations for CVE-2017-12652

References for CVE-2017-12652