CVE-2026-31062: UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the filename parameter of t

Routine

MEDIUM 4.5MITIGATE

CVE-2026-31062 is a medium-severity flaw (CVSS 4.5) affecting 520w firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the filename parameter of the formFtpServerDirConfig function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-120
Published	2026-04-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: utt

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

Am I affected?

Timeline

2026-04-06 15:17 UTCPublished CVE record published
2026-06-17 10:33 UTCUpdated Record last modified

utt 520w firmware MITIGATE

Affected: 1.7.7-180627

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.7-180627

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-2026-31062?

520w firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-31062 being exploited?

CVE-2026-31062 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-2026-31062 affect?

CVE-2026-31062 affects 520w firmware. Severity is medium (CVSS 4.5). UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the filename parameter of the formFtpServerDirConfig function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

How urgent is CVE-2026-31062?

Priority 24/100. Public exploit reference

Related CVEs

CVE-2026-31067 MEDIUM 6.8 MITIGATE A remote command execution (RCE) vulnerability in the /goform/formReleaseConnect component of UTT Aggressive 5
CVE-2026-31065 MEDIUM 4.5 MITIGATE UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the addCommand parameter of
CVE-2026-31059 CRITICAL 9.8 MITIGATE A remote command execution (RCE) vulnerability in the /goform/formDia component of UTT Aggressive HiPER 520W v

References

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