SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-17057

Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.

EXPLOITCRITICAL 9.8EPSS 26.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 26.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

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

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
26.17% probability · 98th percentile
Public exploits
1 in Exploit-DB · first 2 April 2019
CISA KEV
Not listed
Weakness
CWE-502
Affected
tecnick/tcpdf · limesurvey/limesurvey
Source
cve@mitre.org
EPSS trend
0%15%30%21 September 2026: 20.11%22 September 2026: 26.17%27 October 2026: 26.17%21 September 202627 October 2026

EPSS moved from 20.1% on 21 September 2026 to 26.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46634source ↗LimeSurvey < 3.16 - Remote Code Executionphp · q3rv0webapps2 April 2019no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.