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CVE-2019-1749

24
FAUCET Score

CVE-2019-1749 is a denial-of-service vulnerability in Cisco IOS XE Software for ASR 900 Route Switch Processor 3 (RSP3). It allows an unauthenticated, adjacent attacker to trigger a device reload by sending a malformed OSPFv2 message due to insufficient ingress traffic validation. Rated High (CVSS 7.4), this vulnerability has an adjacent attack vector with low complexity, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.13.6asCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*
3.16.0asCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.16.0as:*:*:*:*:*:*:*
3.16.1asCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*
3.16.2asCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.16.2as:*:*:*:*:*:*:*
3.16.3asCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.16.3as:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 47th percentile among its peer group of 1,875 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

ciscopatch availablevia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-rsp3-ospf
PatchVendor Advisory
securityfocus.com / bid/107615
Third Party AdvisoryVDB Entry