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CVE-2017-6742

A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device.  The vulner…

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A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device.  The vulnerability is due to a buffer overflow in the affected code area. The vulnerability affects all versions of SNMP (versions 1, 2c, and 3). The attacker must know the SNMP read only community string (SNMP version 2c or earlier) or the user credentials (SNMPv3). An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or to cause a reload of the affected system. Only traffic directed to the affected system can be used to exploit this vulnerability.
CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.4/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.8: +1.32
  • Fresh EPSS: 21.26%: +0.11

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

TechTarget
Press · 13 Nov 2024, 08:00 · Most widely exploited vulnerabilities in 2023 were zero days - TechTarget
Industrial Cyber
Press · 06 May 2024, 07:00 · Russian APT28 hackers exploit Outlook flaw to target Czech, German, Polish organizations - Industrial Cyber
www.thestack.technology
Press · 29 Sep 2023, 07:00 · Threat group is installing a backdoor in compromised Cisco router firmware. NSA says get better kit - www.thestack.technology
The Cyber Express
Press · 17 May 2023, 12:37 · Jaguar Tooth Malware Unleashed on Unpatched Cisco Routers! - The Cyber Express
Industrial Cyber
Press · 19 Apr 2023, 07:00 · US, UK security agencies warn of APT28 hackers exploiting known Cisco vulnerability, issue mitigation action - Industrial Cyber
See all 11 source documents
The Record from Recorded Future News
Press · 18 Apr 2023, 07:00 · CISA, Cisco highlight Russian military targeting of router vulnerabilities - The Record from Recorded Future News
Cisco Blogs
Press · 18 Apr 2023, 07:00 · Threat Actors Exploiting SNMP Vulnerabilities in Cisco Routers - Cisco Blogs
Cisco Talos Blog
Press · 18 Apr 2023, 07:00 · State-sponsored campaigns target global network infrastructure - Cisco Talos Blog
National Cyber Security Centre
Press · 18 Apr 2023, 07:00 · UK and US issue warning about APT28 actors exploiting poorly maintained Cisco routers - National Cyber Security Centre
National Cyber Security Centre
Press · 18 Apr 2023, 07:00 · APT28 exploits known vulnerability to carry out reconnaissance and deploy malware on Cisco routers - National Cyber Security Centre
National Security Agency (NSA) (.gov)
Press · 18 Apr 2023, 07:00 · NCSC-UK, NSA, and Partners Advise about APT28 Exploitation of Cisco Routers - National Security Agency (NSA) (.gov)

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.4 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 8.8; EPSS 21.3%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, low privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:53.595498+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
17 Jul 2017, 21:00
First press mention
18 Apr 2023, 07:00
Added to the CISA KEV catalog
19 Apr 2023, 00:00
Latest press mention
13 Nov 2024, 08:00
Score calculated
05 Nov 2026, 13:57
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar