CVE-2016-6398
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows...
CVE-2016-6398 is a medium vulnerability (CVSS 5.3) in Cisco Ios, published September 12, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.26%, the 70th percentile. No source names a fixed version.
- Severity
- 5.3 MediumCVSS 3.0, NVD
- Exploit chance
- 1.26%EPSS, 70th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows remote attackers to obtain sensitive information from earlier network communication by reading packet data, aka Bug ID CSCvb16274.
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
- None
- Availability
- None
Exploit likelihood
Affected products
What each source reports
NVD Score used
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows remote attackers to obtain sensitive information from earlier network communication by reading packet data, aka Bug ID CSCvb16274.
- Record
CVE-2016-6398- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows remote attackers to obtain sensitive information from earlier network communication by reading packet data, aka Bug ID CSCvb16274.
- Record
CVE-2016-6398- Updated
- 2026-11-02
EUVDEUVD-2016-7321No score
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows remote attackers to obtain sensitive information from earlier network communication by reading packet data, aka Bug ID CSCvb16274.
- Record
EUVD-2016-7321- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qg58-pgjg-rwwr
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows...
The PPTP server in Cisco IOS 15.5(3)M does not properly initialize packet buffers, which allows remote attackers to obtain sensitive information from earlier network communication by reading packet data, aka Bug ID CSCvb16274.
- Record
GHSA-qg58-pgjg-rwwr- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.