THREATPORT/VULNERABILITY/CVE-2011-1554
MEDIUM SEVERITY

CVE-2011-1554

T1lib vulnerability

CVSS
4.3
EPSS
5.4%
EPSS pct
92th
Exploited
No known
Off-by-one error in t1lib 5.1.2 and earlier, as used in Xpdf before 3.02pl6, teTeX, and other products, allows remote attackers to cause a denial of service (application crash) via a PDF document containing a crafted Type 1 font that triggers an invalid memory read, integer overflow, and invalid pointer dereference, a different vulnerability than CVE-2011-0764.
Affected vendor
T1lib
Affected product
T1lib
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness type (CWE)
Published
2011-03-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 5.4% 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-2011-1554

  • Confirm whether T1lib T1lib is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-1554.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-1554

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-1554 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2011-1554?

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