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CVE-2025-536297.5HighCWE-770

CVE-2025-53629: cpp-httplib Unbounded Memory Allocation in Chunked/No-Length Requests Vulnerability

yhirose · cpp-httplib

Affected: yhirose cpp-httplib · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.6%probability of exploitation in the next 30 days
49th percentile
050100

Higher than 49% of scored CVEs

7.5HighCVSS 3.1
LowHigh

DescriptionCVE.org

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.23.0, incoming requests using Transfer-Encoding: chunked in the header can allocate memory arbitrarily in the server, potentially leading to its exhaustion. This vulnerability is fixed in 0.23.0. NOTE: This vulnerability is related to CVE-2025-53628.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • yhirose · cpp-httplib< 0.23.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

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Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
yhirose
Published
July 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-53629 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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