THREATPORT/VULNERABILITY/CVE-2008-1721
HIGH SEVERITY

CVE-2008-1721

Python vulnerability

CVSS
7.5
EPSS
22.6%
EPSS pct
97th
Exploited
No known
Integer signedness error in the zlib extension module in Python 2.5.2 and earlier allows remote attackers to execute arbitrary code via a negative signed integer, which triggers insufficient memory allocation and a buffer overflow.
Affected vendor
Python
Affected product
Python
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness type (CWE)
  • CWE-681 — Incorrect Conversion between Numeric Types
Published
2008-04-10

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 confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 22.6% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2008-1721

  • Confirm whether Python Python is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2008-1721.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-1721

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-1721 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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