CVE-2025-13836 Details
When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2025-13836
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.09 Probability of exploitation activity being observed over the next 30 days (25th percentile)
CVSS score for CVE-2025-13836
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.1 Critical
Products affected by CVE-2025-13836
Python 2.4.2
Python 2.4.3
Python 2.4.4
Python 2.4.5
Python 2.4.6
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2025-13836 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 76,713 46.38%
DE 13,308 8.05%
CN 11,154 6.74%
JP 4,690 2.84%
NL 4,632 2.80%
FR 4,229 2.56%
GB 4,175 2.52%
SG 3,281 1.98%
KR 2,934 1.77%
RU 2,899 1.75%

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CVE-2025-13836 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 100,006 82.52%
Telecommunications 13,282 10.96%
Education 4,823 3.98%
Media/Entertainment 1,216 1.00%
Government/Politics 458 0.38%
Business Services 310 0.26%
Energy/Resources 208 0.17%
Retail 200 0.17%
Real Estate 108 0.09%
Manufacturing 94 0.08%

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