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NVD / CVE Program· CNA microsoft

CVE-2025-53783: Microsoft Teams Remote Code Execution Vulnerability

Noroxi assessment

Priority: Monitor (action score 30/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.89% (FIRST EPSS); higher than 59.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. Special conditions such as timing or configuration are required.
  • Fixed version: Microsoft Teams for Android 1416/1.0.0.2025102802; Microsoft Teams for Desktop 25122.1415.3698.6812; Microsoft Teams for iOS 7.10.1 (100772025102901).

Low priority for now. Upgrade to Microsoft Teams for Android 1416/1.0.0.2025102802; Microsoft Teams for Desktop 25122.1415.3698.6812; Microsoft Teams for iOS 7.10.1 (100772025102901) or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Heap-based buffer overflow in Microsoft Teams allows an unauthorized attacker to execute code over a network.

HighCVSS 7.5 · v3.1—Proof of concept Fix available
Published
Aug 12, 2025
Updated
Jun 17, 2026
EPSS
0.8% · 59th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · microsoft
7.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-53783

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
microsoftdynamics 365 guides
microsoftdynamics 365 remote assist
microsoftteams
microsoftteams panels
microsoftteams phones

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • microsoft dynamics 365 guidesbefore 907.2505.29001.0
  • microsoft dynamics 365 remote assistbefore 316.2505.28001
  • microsoft teamsbefore 1.0.0.2025102802
  • microsoft teamsbefore 7.10.1
  • microsoft teamsbefore 25122.1207.3700.1444
  • microsoft teamsbefore 25122.1415.3698.6812
  • microsoft teams panelsbefore 1.0.97.2025102203
  • microsoft teams phonesbefore 1.0.94.2025168802

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

  • Microsoft Microsoft Teams for Android

    • 1.0.0 and later · before 1416/1.0.0.2025102802affected

  • Microsoft Microsoft Teams for Desktop

    • 1.0.0 and later · before 25122.1415.3698.6812affected

  • Microsoft Microsoft Teams for iOS

    • 2.0.0 and later · before 7.10.1 (100772025102901)affected

  • Microsoft Microsoft Teams for Mac, New Edition

    • 1.0.0.0 and later · before 25122.1207.3700.1444affected

  • Microsoft Teams for D365 Guides HoloLens

    • 907.0000 and later · before 907.2505.29001.0affected

  • Microsoft Teams for D365 Remote Assist HoloLens

    • 316.0000 and later · before 316.2505.28001affected

  • Microsoft Teams Panel

    • 1.0.97 and later · before 1449/1.0.97.2025102203affected

  • Microsoft Teams Phone

    • 1.0.94 and later · before 1449/1.0.94.2025168802affected

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Microsoft Teams for Android1416/1.0.0.2025102802 · Release NotesMicrosoft (MSRC)
Microsoft Teams for Desktop25122.1415.3698.6812 · Release NotesMicrosoft (MSRC)
Microsoft Teams for iOS7.10.1 (100772025102901) · Release NotesMicrosoft (MSRC)
Microsoft Teams for Mac, New Edition25122.1207.3700.1444 · Release NotesMicrosoft (MSRC)
Teams for D365 Guides Hololens907.2505.29001.0 · Release NotesMicrosoft (MSRC)
Teams for D365 Remote Assist HoloLens316.2505.28001 · Release NotesMicrosoft (MSRC)
Teams Panels1449/1.0.97.2025102203 · Release NotesMicrosoft (MSRC)
Teams Phones1449/1.0.94.2025168802 · Release NotesMicrosoft (MSRC)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-01-14

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+154 d
  3. TodayNov 4, 2026+449 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records