CVE-2025-20352 Details
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow the following:


An authenticated, remote attacker with low privileges could cause a denial of service (DoS) condition on an affected device that is running Cisco IOS Software or Cisco IOS XE Software. To cause the DoS, the attacker must have the SNMPv2c or earlier read-only community string or valid SNMPv3 user credentials.
An authenticated, remote attacker with high privileges could execute code as the root user on an affected device that is running Cisco IOS XE Software. To execute code as the root user, the attacker must have the SNMPv1 or v2c read-only community string or valid SNMPv3 user credentials and administrative or privilege 15 credentials on the affected device.

An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device over IPv4 or IPv6 networks.

This vulnerability is due to a stack overflow condition in the SNMP subsystem of the affected software. A successful exploit could allow a low-privileged attacker to cause the affected system to reload, resulting in a DoS condition, or allow a high-privileged attacker to execute arbitrary code as the root user and obtain full control of the affected system.

Note: This vulnerability affects all versions of SNMP.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2025-20352
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
1.58 Probability of exploitation activity being observed over the next 30 days (81st percentile)
CVSS score for CVE-2025-20352
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
7.7 High
Products affected by CVE-2025-20352
IOS 12.2\(58\)se2
IOS 12.2\(60\)ez1
IOS 12.2\(60\)ez2
IOS 15.0\(1\)se3
IOS 15.0\(2\)se
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Critical
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CVE-2025-20352 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
RU 418 78.72%
KR 46 8.66%
US 12 2.26%
ID 12 2.26%
PK 9 1.69%
TW 8 1.51%
FR 5 0.94%
AU 4 0.75%
JP 3 0.56%
GB 3 0.56%

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CVE-2025-20352 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 372 95.38%
Education 8 2.05%
Technology 5 1.28%
Food Production 3 0.77%
Finance 1 0.26%
Retail 1 0.26%

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