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Ios Xr CVE-2013-1234

MEDIUM
Buffer Overflow (CWE-119)
2013-05-03 psirt@cisco.com
Buffer Overflow Denial Of Service Apple Cisco Ios Xr
4.0
CVSS 2.0 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-119
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 4.0 (MEDIUM). Attack characteristics: network attack vector, low complexity. EPSS exploitation probability: 0.41%.
Exploit ScenarioDerived

A remote attacker could corrupt memory to execute arbitrary code or crash the application by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

The SNMP module in Cisco IOS XR allows remote authenticated users to cause a denial of service (process restart) via crafted SNMP packets, aka Bug ID CSCue69472. Rated medium severity (CVSS 4.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. The SNMP module in Cisco IOS XR allows remote authenticated users to cause a denial of service (process restart) via crafted SNMP packets, aka Bug ID CSCue69472. Affected products include: Cisco Ios Xr.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 4.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
P

DescriptionCVE.org

The SNMP module in Cisco IOS XR allows remote authenticated users to cause a denial of service (process restart) via crafted SNMP packets, aka Bug ID CSCue69472.

Threat Intelligence Overview

EPSS Score
0.4%
Top 38% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

20
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +20
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

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Same weakness CWE-119 – Buffer Overflow

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CVE-2023-4966 HIGH POC
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CVE-2013-3660 HIGH POC
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Same technique Buffer Overflow

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References

Advisories & patches
ADVISORY http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1234

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