CVE-2026-77908: Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attac

Q: How do I fix CVE-2026-77908?

dynamics 365: upgrade to 9.1.0048.0004. Exact commands for each OS are on this page.

Q: Is CVE-2026-77908 being exploited?

CVE-2026-77908 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-2026-77908 affect?

CVE-2026-77908 affects dynamics 365. Severity is high (CVSS 8.8). Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

Q: How urgent is CVE-2026-77908?

Priority 51/100. High severity; On your watchlist

This month

HIGH 8.8WATCHLISTUPGRADE

CVE-2026-77908 is a high-severity flaw (CVSS 8.8) affecting dynamics 365. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

Why this priority

High severity
On your watchlist

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	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-09-08
Last modified	2026-09-29

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-09-29 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 18:20 UTCPublished CVE record published
2026-09-29 19:40 UTCUpdated Record last modified

microsoft dynamics 365 UPGRADE

Affected: < 9.1.0048.0004

Fixed in: 9.1.0048.0004

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dynamics-365 || rpm -q dynamics-365 || dynamics-365 --version

2. UPGRADE to 9.1.0048.0004 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dynamics-365

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dynamics-365

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-77908?

dynamics 365: upgrade to 9.1.0048.0004. Exact commands for each OS are on this page.

Is CVE-2026-77908 being exploited?

CVE-2026-77908 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-2026-77908 affect?

CVE-2026-77908 affects dynamics 365. Severity is high (CVSS 8.8). Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

How urgent is CVE-2026-77908?

Priority 51/100. High severity; On your watchlist

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References

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