CVE-2024-31970: AdTran SRG 834-5 HDC17600021F1 devices (with SmartOS 11.1.1.1 and fixed in Version 12.1.3.1) have SSH enabled

Q: How do I fix CVE-2024-31970?

sdg smartos: upgrade to 12.1.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-31970 being exploited?

CVE-2024-31970 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-31970 affect?

CVE-2024-31970 affects sdg smartos. Severity is high (CVSS 8.8). AdTran SRG 834-5 HDC17600021F1 devices (with SmartOS 11.1.1.1 and fixed in Version 12.1.3.1) have SSH enabled by default, accessible both over the LAN and the Internet. During a window of time when the device is being set up, it uses a defa

This month

HIGH 8.8UPGRADE

CVE-2024-31970 is a high-severity flaw (CVSS 8.8) affecting sdg smartos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AdTran SRG 834-5 HDC17600021F1 devices (with SmartOS 11.1.1.1 and fixed in Version 12.1.3.1) have SSH enabled by default, accessible both over the LAN and the Internet. During a window of time when the device is being set up, it uses a default username and password combination of admin/admin with root-level privileges. An attacker can exploit this window to gain unauthorized root access by either modifying the existing admin account or creating a

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-863
Published	2024-07-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: adtran

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-07-24 16:15 UTCPublished CVE record published
2026-06-17 07:29 UTCUpdated Record last modified

adtran sdg smartos UPGRADE

Affected: < 12.1.3.1

Fixed in: 12.1.3.1

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-31970?

sdg smartos: upgrade to 12.1.3.1. Exact commands for each OS are on this page.

Is CVE-2024-31970 being exploited?

CVE-2024-31970 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-31970 affect?

CVE-2024-31970 affects sdg smartos. Severity is high (CVSS 8.8). AdTran SRG 834-5 HDC17600021F1 devices (with SmartOS 11.1.1.1 and fixed in Version 12.1.3.1) have SSH enabled by default, accessible both over the LAN and the Internet. During a window of time when the device is being set up, it uses a defa

How urgent is CVE-2024-31970?

Priority 43/100. High severity

Related CVEs

CVE-2024-39345 HIGH 7.2 UPGRADE AdTran 834-5 HDC17600021F1 (SmartOS 11.1.1.1) devices enable the SSH service by default and have a hidden, und
CVE-2024-31977 HIGH 8.8 UPGRADE MITIGATE Adtran 834-5 11.1.0.101-202106231430, and fixed as of SmartOS Version 12.6.3.1, devices allow OS Command Injec

References

← Back to latest CVEs