Which versions of PHP are affected by CVE-2017-20212?

CVE-2017-20212 presents moderate security risk, a path traversal vulnerability rated CVSS 6.2. This could allow unauthorized file access. Proof-of-concept code is publicly available.

Is there a public PoC exploit available for CVE-2017-20212?

Yes, a public proof-of-concept exploit is available for CVE-2017-20212. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2017-20212?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.

PHP CVE-2017-20212

Q: What is the CVSS score of CVE-2017-20212?

CVE-2017-20212 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.3%.

HIGH

Path Traversal (CWE-22)

2026-01-08 disclosure@vulncheck.com

PHP Information Disclosure Path Traversal

8.7

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 15, 2026 - 15:22 NVD

MEDIUM HIGH

CVSS changed

Apr 15, 2026 - 15:22 NVD

6.2 (MEDIUM) 8.7 (HIGH)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 08, 2026 - 19:15 vuln.today

Public exploit code

CVE Published

Jan 08, 2026 - 00:15 nvd

MEDIUM 6.2

DescriptionCVE.org

FLIR Thermal Camera F/FC/PT/D firmware version 8.0.0.64 contains an information disclosure vulnerability that allows unauthenticated attackers to read arbitrary files through unverified input parameters. Attackers can exploit the /var/www/data/controllers/api/xml.php readFile() function to access local system files without authentication.

AnalysisAI

Technical ContextAI

Classified as CWE-22 (Path Traversal). FLIR Thermal Camera F/FC/PT/D firmware version 8.0.0.64 contains an information disclosure vulnerability that allows unauthenticated attackers to read arbitrary files through unverified input parameters. Attackers can exploit the /var/www/data/controllers/api/xml.php readFile() function to access local system files without authentication.

Affected ProductsAI

Component: unverified input.

RemediationAI

Monitor vendor advisories for a patch. Validate and sanitize file path inputs. Use allowlists.

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CVE-2017-20212 vulnerability details – vuln.today

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PHP CVE-2017-20212

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code