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CVE-2025-63938

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port()...

6.5 MediumFix available

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.28%Up 0.3 points since Nov 27, 2025
90%50%10%1%

What each source reports

CVE List Score used 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
CVE-2025-63938
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-190
Updated
2026-11-02
EUVDEUVD-2025-199723 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
EUVD-2025-199723
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-w547-jc37-w3cr 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port()...

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
GHSA-w547-jc37-w3cr
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-190
Updated
2026-11-02
NVD 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
CVE-2025-63938
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-190
Updated
2026-11-05
OSV 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
CVE-2025-63938
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-06
OSVDEBIAN-CVE-2025-63938 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
DEBIAN-CVE-2025-63938
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-05
OSVUBUNTU-CVE-2025-63938 6.5

Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within src/reqs.c.

Record
UBUNTU-CVE-2025-63938
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
tinyproxy
Debian:12
 All versions, plus listed versions
1.11.1-2.11.11.1-2.1+deb12u11.11.1-31.11.1-41.11.2-11.11.2-1~bpo12+11.11.3-11.11.3-1~bpo13+1
 None known
tinyproxy
Debian:13
 All versions, plus listed versions
1.11.2-11.11.3-11.11.3-1~bpo13+1
 None known
tinyproxy
Debian:14
 before 1.11.3-1, plus listed versions
1.11.2-11.11.3-1~bpo13+1
1.11.3-1
tinyproxy
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
1.8.3-3ubuntu11.8.3-3ubuntu14.04.1~esm11.8.3-3ubuntu14.04.1~esm21.8.3-3ubuntu14.04.1~esm3
 None known
tinyproxy
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1.8.3-3ubuntu11.8.3-3ubuntu16.04.1~esm11.8.3-3ubuntu16.04.1~esm21.8.3-3ubuntu16.04.1~esm3
 None known
tinyproxy
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
1.8.4-21.8.4-31.8.4-51.8.4-5ubuntu0.1~esm11.8.4-5ubuntu0.1~esm21.8.4-5ubuntu0.1~esm3
 None known
tinyproxy
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.10.0-21.10.0-41.10.0-4ubuntu0.11.10.0-4ubuntu0.2
 None known
tinyproxy
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
1.10.0-51.11.0-11.11.0-1ubuntu0.1~esm11.11.0-1ubuntu0.1~esm2
 None known
tinyproxy
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.11.1-2.11.11.1-31.11.1-3ubuntu0.1
 None known
tinyproxy
Ubuntu:25.10
 All versions, plus listed versions
1.11.2-1
 None known
tinyproxy
Ubuntu:26.10
 All versions, plus listed versions
1.11.3-1
 None known
tinyproxy
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.11.2-11.11.2-1build11.11.3-1
 None known

History

History
RecordedChangedSources
factsNVD
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-63938 is a medium vulnerability (CVSS 6.5) in Tinyproxy Project Tinyproxy, published November 26, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. Fixed in tinyproxy 1.11.3-1.

References

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