How severe is CVE-2024-31970?

CVE-2024-31970 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-31970 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-31970?

CVE-2024-31970 affects Adtran Sdg Smartos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-31970?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-31970 have an EU (EUVD) identifier?

Yes. CVE-2024-31970 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-29828.

When was CVE-2024-31970 published?

CVE-2024-31970 was published on 2024-07-24 and last updated on 2026-06-17.

CVE-2024-31970

CVE-2024-31970 is a high-severity vulnerability in Adtran Sdg Smartos with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-29828
Weakness: CWE-863
Affected product: Adtran Sdg Smartos
Published: 2024-07-24
Last modified: 2026-06-17

Description

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 new account with equivalent privileges. This vulnerability allows attackers to execute arbitrary commands. NOTE: The vendor has disputed this, finding the report not applicable. According to AdTran, SSH has never been accessible (from WAN) on SmartOS official builds. Furthermore, the vendor adds that test build 11.1.0.101-202106231430 was never released to end users.

Frequently asked questions

What is 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 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 new account with equivalent privileges. This vulnerability allows attackers to execute arbitrary commands. NOTE: The vendor has disputed this, finding the report not applicable. According to AdTran, SSH has never been accessible (from WAN) on SmartOS official builds. Furthermore, the vendor adds that test build 11.1.0.101-202106231430 was never released to end users.
How severe is CVE-2024-31970?: CVE-2024-31970 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-31970 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-31970?: CVE-2024-31970 affects Adtran Sdg Smartos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-31970?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-31970 have an EU (EUVD) identifier?: Yes. CVE-2024-31970 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-29828.
When was CVE-2024-31970 published?: CVE-2024-31970 was published on 2024-07-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:adtran:sdg_smartos:*:*:*:*:*:*:*:*

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