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CVE-2017-3224

21
FAUCET Score

CVE-2017-3224 describes a vulnerability in Open Shortest Path First (OSPF) protocol implementations, specifically affecting Quagga and its downstream distributions like SUSE, openSUSE, and Red Hat. Attackers can craft a malicious Link State Advertisement (LSA) with a MaxSequenceNumber and invalid links, leading to an improperly determined recency by vulnerable OSPF implementations. This allows the crafted LSA to persist in the Link State Database (LSDB), potentially causing denial of service or traffic re-routing within the network. The vulnerability carries a CVSS v3.0 score of 8.2 (HIGH), indicating a severe risk. It can be exploited with adjacent network access (AV:A) and high attack complexity (AC:H), leading to potential impacts on confidentiality (C:L), integrity (I:H), and availability (A:H). The attack does not require user interaction (UI:N) or privileges (PR:N). Currently, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting a low level of public awareness or attention.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:quagga:quagga:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:suse:opensuse:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:suse:suse_linux:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:package_manager:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.2HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 75th percentile among its peer group of 237 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: quagga
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: quagga
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: quagga

Vendor Advisories (1)

redhatCVE-2017-3224Moderate

quagga: OSPF implementation improperly determines LSA recency (VU#793496)

Jul 27, 2017

References

kb.cert.org / vuls/id/793496
Third Party AdvisoryUS Government Resource