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CVE-2016-10396

25
FAUCET Score

CVE-2016-10396 describes a remotely exploitable computational-complexity vulnerability in the racoon daemon of IPsec-Tools 0.8.2. An unauthenticated attacker can exhaust computational resources by sending specially crafted ISAKMP fragment packets, triggering a worst-case scenario in the reassembly algorithm. This vulnerability carries a CVSS score of 7.5 (High), indicating a high impact on availability with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.8.2CPE matchmatch criteria
cpe:2.3:a:ipsec-tools:ipsec-tools:0.8.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.93%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0293 is in the 74th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ipsec-tools

Vendor Advisories (1)

redhatCVE-2016-10396Moderate

ipsec-tools: Parsing and storing ISAKMP fragments in malicious order can exhaust resources

Dec 2, 2016

References

cvsweb.netbsd.org / bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp_frag.c.diff
Mailing ListThird Party Advisory
cvsweb.netbsd.org / bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp_frag.c
Third Party Advisory
gnats.netbsd.org / cgi-bin/query-pr-single.pl
Mailing ListThird Party Advisory