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CVE-2013-7098

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on...

9.8 CriticalFix available

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

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
High
Integrity
High
Availability
High

Exploit likelihood

1.54%Up 0.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 9.8

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
CVE-2013-7098
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
CVE-2013-7098
Updated
2026-11-02
EUVDEUVD-2013-6884 No score

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
EUVD-2013-6884
Updated
2026-11-03
GitHub AdvisoriesGHSA-5fg5-5jx7-ph2f No score

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on...

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
GHSA-5fg5-5jx7-ph2f
Updated
2026-11-02
OSV 9.8

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
CVE-2013-7098
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2013-7098 9.8

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Record
DEBIAN-CVE-2013-7098
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:10553-1 No score

openconnect-7.07-1.3 on GA media

These are all security issues fixed in the openconnect-7.07-1.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10553-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openconnect
Debian:12
before 5.02-1
5.02-1
openconnect
Debian:13
before 5.02-1
5.02-1
openconnect
Debian:14
before 5.02-1
5.02-1
openconnect
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
before 7.07-1.3
7.07-1.3

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2013-7098 is a critical vulnerability (CVSS 9.8) in Infradead Openconnect, published February 13, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.54%, the 75th percentile. Fixed in openconnect 5.02-1.

References

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