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CVE-2026-128238 (GCVE-0-2026-128238)

Vulnerability from nvd – Published: 2026-11-13 09:33 – Updated: 2026-11-13 22:31

Title

Scapy before 2.8.0 Uncontrolled Recursion DoS via BER SEQUENCE Decoder

Summary

Scapy before 2.8.0 contains an uncontrolled recursion vulnerability in the BER/ASN.1 decoder in scapy/asn1/ber.py that allows unauthenticated remote attackers to crash parsing applications. Attackers can send a single 833-byte packet with 250 nested ASN.1 SEQUENCE structures to trigger an unhandled RecursionError, terminating TLS, SNMP, X.509, or LDAP parsers even with safe=True.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-13 16:34 UTC

CWE

CWE-674 - Uncontrolled Recursion

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.8.0 (semver) Unaffected: 2.8.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2026-09-08 00:00

Credits

infycore

Show details on NVD website

JSON

To clipboard

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CVE-2026-128237 (GCVE-0-2026-128237)

Vulnerability from nvd – Published: 2026-11-13 09:33 – Updated: 2026-11-13 09:33

Title

Scapy before 2.8.0 Denial of Service via Quadratic BER OID Decoding

Summary

Scapy before 2.8.0 contains a denial of service vulnerability in BER_num_dec() and BERcodec_OID.do_dec() that allows remote attackers to exhaust CPU by supplying oversized OID arcs. Attackers can send ASN.1/BER data with many base-128 continuation bytes to cause quadratic CPU consumption or an uncaught ValueError crash on Python 3.11+.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.8.0 (semver) Unaffected: 2.8.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2026-09-08 00:00

Credits

tynus2

Show details on NVD website

JSON

To clipboard

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CVE-2025-71463 (GCVE-0-2025-71463)

Vulnerability from nvd – Published: 2026-11-13 09:36 – Updated: 2026-11-13 20:35

Title

Scapy before 2.7.0 Insecure Deserialization RCE via Session Files

Summary

Scapy before 2.7.0 contains an insecure deserialization vulnerability in the load_session function that allows attackers to execute code by supplying a malicious pickle session file. Attackers can trick users into loading a crafted .pkl.gz file via the -s option or conf.session, executing embedded Python code through __reduce__().

Severity

5.4 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-13 20:34 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.7.0 (semver) Unaffected: 2.7.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2025-10-22 00:00

Credits

anotherik

Show details on NVD website

JSON

To clipboard

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CVE-2019-1010142 (GCVE-0-2019-1010142)

Vulnerability from nvd – Published: 2019-07-19 15:45 – Updated: 2024-08-05 03:07

Summary

scapy 2.4.0 is affected by: Denial of Service. The impact is: infinite loop, resource consumption and program unresponsive. The component is: _RADIUSAttrPacketListField.getfield(self..). The attack vector is: over the network or in a pcap. both work.

Severity

No CVSS data available.

CWE

Denial of Service

Assigner

dwf CNA

CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details

References

6 references

URL	Tags
https://github.com/secdev/scapy/pull/1409/files#d…	x_refsource_MISC
https://www.imperva.com/blog/scapy-sploit-python-…	x_refsource_MISC
https://github.com/secdev/scapy/pull/1409	x_refsource_MISC
http://www.securityfocus.com/bid/106674	vdb-entryx_refsource_BID
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
SecDev	scapy	Affected: 2.4.0

Show details on NVD website

JSON

To clipboard

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CVE-2025-71463 (GCVE-0-2025-71463)

Vulnerability from cvelistv5 – Published: 2026-11-13 09:36 – Updated: 2026-11-13 20:35

Title

Scapy before 2.7.0 Insecure Deserialization RCE via Session Files

Summary

Scapy before 2.7.0 contains an insecure deserialization vulnerability in the load_session function that allows attackers to execute code by supplying a malicious pickle session file. Attackers can trick users into loading a crafted .pkl.gz file via the -s option or conf.session, executing embedded Python code through __reduce__().

Severity

5.4 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

6.7 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-13 20:34 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.7.0 (semver) Unaffected: 2.7.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2025-10-22 00:00

Credits

anotherik

Show details on NVD website

JSON

To clipboard

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CVE-2026-128237 (GCVE-0-2026-128237)

Vulnerability from cvelistv5 – Published: 2026-11-13 09:33 – Updated: 2026-11-13 09:33

Title

Scapy before 2.8.0 Denial of Service via Quadratic BER OID Decoding

Summary

Scapy before 2.8.0 contains a denial of service vulnerability in BER_num_dec() and BERcodec_OID.do_dec() that allows remote attackers to exhaust CPU by supplying oversized OID arcs. Attackers can send ASN.1/BER data with many base-128 continuation bytes to cause quadratic CPU consumption or an uncaught ValueError crash on Python 3.11+.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.8.0 (semver) Unaffected: 2.8.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2026-09-08 00:00

Credits

tynus2

Show details on NVD website

JSON

To clipboard

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CVE-2026-128238 (GCVE-0-2026-128238)

Vulnerability from cvelistv5 – Published: 2026-11-13 09:33 – Updated: 2026-11-13 22:31

Title

Scapy before 2.8.0 Uncontrolled Recursion DoS via BER SEQUENCE Decoder

Summary

Scapy before 2.8.0 contains an uncontrolled recursion vulnerability in the BER/ASN.1 decoder in scapy/asn1/ber.py that allows unauthenticated remote attackers to crash parsing applications. Attackers can send a single 833-byte packet with 250 nested ASN.1 SEQUENCE structures to trigger an unhandled RecursionError, terminating TLS, SNMP, X.509, or LDAP parsers even with safe=True.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-13 16:34 UTC

CWE

CWE-674 - Uncontrolled Recursion

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 8179 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/secdev/scapy/security/advisori…	vendor-advisory
https://www.vulncheck.com/advisories/scapy-before…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
secdev	scapy	Affected: 0 , < 2.8.0 (semver) Unaffected: 2.8.0 (semver) cpe:2.3:a:scapy:scapy::::::::

Date Public

2026-09-08 00:00

Credits

infycore

Show details on NVD website

JSON

To clipboard

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CVE-2019-1010142 (GCVE-0-2019-1010142)

Vulnerability from cvelistv5 – Published: 2019-07-19 15:45 – Updated: 2024-08-05 03:07

Summary

scapy 2.4.0 is affected by: Denial of Service. The impact is: infinite loop, resource consumption and program unresponsive. The component is: _RADIUSAttrPacketListField.getfield(self..). The attack vector is: over the network or in a pcap. both work.

Severity

No CVSS data available.

CWE

Denial of Service

Assigner

dwf CNA

CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details

References

6 references

URL	Tags
https://github.com/secdev/scapy/pull/1409/files#d…	x_refsource_MISC
https://www.imperva.com/blog/scapy-sploit-python-…	x_refsource_MISC
https://github.com/secdev/scapy/pull/1409	x_refsource_MISC
http://www.securityfocus.com/bid/106674	vdb-entryx_refsource_BID
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
SecDev	scapy	Affected: 2.4.0

Show details on NVD website

JSON

To clipboard

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8 vulnerabilities by secdev

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CVE-2019-1010142 (GCVE-0-2019-1010142)