CVE-2021-43113

Itext vulnerability

CVSS

9.8

EPSS

5.2%

EPSS pct

92th

Exploited

No known

iTextPDF in iText 7 and up to (excluding 4.4.13.3) 7.1.17 allows command injection via a CompareTool filename that is mishandled on the gs (aka Ghostscript) command line in GhostscriptHelper.java.

Affected vendor

Itextpdf

Affected product

Itext

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-77 — Command Injection

Published

2021-12-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2021-43113

Confirm whether Itextpdf Itext is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-43113.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-43113

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-43113 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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