CVE-2012-1148

Libexpat vulnerability

CVSS

5.0

EPSS

3.6%

EPSS pct

88th

Exploited

No known

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.

Affected vendor

Libexpat Project

Affected product

Libexpat

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Weakness type (CWE)

CWE-399

Published

2012-07-03

Risk analysis

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

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2012-1148

Confirm whether Libexpat Project Libexpat is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2012-1148.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-1148

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