CVE-2017-3862
No exploitation reported by the sources we read.
- Published2017-04-20
- WeaknessCWE-119
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Multiple vulnerabilities in the EnergyWise module of Cisco IOS (12.2 and 15.0 through 15.6) and Cisco IOS XE (3.2 through 3.18) could allow an unauthenticated, remote attacker to cause a buffer overflow condition or a reload of an affected device, leading to a denial of service (DoS) condition. These vulnerabilities are due to improper parsing of crafted EnergyWise packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted EnergyWise packets to be processed by an affected device. An exploit could allow the attacker to cause a buffer overflow condition or a reload of the affected device, leading to a DoS condition. Cisco IOS Software and Cisco IOS XE Software support EnergyWise for IPv4 communication. Only IPv4 packets destined to a device configured as an EnergyWise domain member can trigger these vulnerabilities. IPv6 packets cannot be used to trigger these vulnerabilities. Cisco Bug ID CSCuu76493.
Timeline
dates in UTC- 2017-04-2022:59CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-3862?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-3862?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.2 | = 12.2\(33\)sxi4 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi4a | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi5 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi6 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi7 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi8 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi8a | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi9 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi10 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi11 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi12 | no fix published | NVD |
| 12.2 | = 12.2\(33\)sxi13 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.2 | = 3.2.1sg | no fix published | NVD |
| 3.2 | = 3.2.8sg | no fix published | NVD |
| 3.3 | = 3.3.1sg | no fix published | NVD |
| 3.3 | = 3.3.1sq | no fix published | NVD |
| 3.4 | = 3.4.1sg | no fix published | NVD |
| 3.4 | = 3.4.2sg | no fix published | NVD |
| 3.4 | = 3.4.3sg | no fix published | NVD |
| 3.4 | = 3.4.6sg | no fix published | NVD |
| 3.4 | = 3.4.8sg | no fix published | NVD |
| 3.5 | = 3.5.1e | no fix published | NVD |
| 3.5 | = 3.5.3e | no fix published | NVD |
| 3.6 | = 3.6.0e | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- tools.cisco.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.08.6read 2026-10-23
- NVDCVSS 2.07.8read 2026-10-23
- CNAweakness (CWE)CWE-119read 2026-10-23
- NVDweakness (CWE)CWE-119read 2026-10-23
- FIRST EPSSEPSS score2.8 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Published
- 2017-04-20
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2017-3862?
Is CVE-2017-3862 actively exploited?
What is the CVSS score for CVE-2017-3862?
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