CVE-2018-17057

CRITICALNVD 9.89.8—Elevated

9.8

An issue was discovered in TCPDF before 6.2.22. Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 98.0%
KEV: Not listed

Published

September 14, 2018

Last Modified

November 21, 2024

References (14)

cve@mitrehttp://packetstormsecurity.com/files/152200/TCPDF-6.2.19-Deserialization-Remote-Code-Execution.html
cve@mitrehttp://packetstormsecurity.com/files/152360/LimeSurvey-Deserialization-Remote-Code-Execution.html
cve@mitrehttp://seclists.org/fulldisclosure/2019/Mar/36
cve@mitrehttps://contao.org/en/news/security-vulnerability-cve-2018-17057.html
cve@mitrehttps://github.com/LimeSurvey/LimeSurvey/commit/1cdd78d27697b3150bb44aaa7af1a81062a591a5
cve@mitrehttps://github.com/tecnickcom/TCPDF/commit/1861e33fe05f653b67d070f7c106463e7a5c26ed
cve@mitrehttps://www.exploit-db.com/exploits/46634/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/152200/TCPDF-6.2.19-Deserialization-Remote-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/152360/LimeSurvey-Deserialization-Remote-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2019/Mar/36
af854a3a-2127-422b-91ae-364da2661108https://contao.org/en/news/security-vulnerability-cve-2018-17057.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/LimeSurvey/LimeSurvey/commit/1cdd78d27697b3150bb44aaa7af1a81062a591a5
af854a3a-2127-422b-91ae-364da2661108https://github.com/tecnickcom/TCPDF/commit/1861e33fe05f653b67d070f7c106463e7a5c26ed
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/46634/

Affected Packages

(4 across 1 ecosystem)

Packagist(4)

Package	Vulnerable range	Fixed in	Dependents
fooman/tcpdf	6.0.013 ... 6.2.9 (103 versions)	6.2.22	—
la-haute-societe/tcpdf	6.0.013 ... 6.2.9 (104 versions)	6.2.22	—
spoonity/tcpdf	6.0.013 ... 6.2.9 (102 versions)	6.2.22	—
tecnickcom/tcpdf	6.0.013 ... 6.2.9 (108 versions)	6.2.22	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 8× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 03:08 UTCEG score recompute
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 02:13 UTCOSV refresh
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-46634
First seen Apr 2, 2019
LimeSurvey < 3.16 - Remote Code Execution
Open source ↗

Frequently asked(5)

What is CVE-2018-17057?

CVE-2018-17057 is a critical vulnerability published on September 14, 2018. An issue was discovered in TCPDF before 6.2.22. Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.

When was CVE-2018-17057 disclosed?

CVE-2018-17057 was first published in the National Vulnerability Database on September 14, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-17057 actively exploited?

CVE-2018-17057 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-17057?

CVE-2018-17057 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2018-17057?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-17057, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-17057

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CVE-2018-17057

📅 Published

🔄 Last Modified

🔗 References (14)