# Rxi Microtar vulnerabilities

Source: https://junglewise.ai/threats/technologies/microtar  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/microtar.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Rxi Microtar: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55738, was published on 17 June 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

## About Rxi Microtar

A lightweight C library for reading and writing tar archives.

## Latest Rxi Microtar vulnerabilities

- [CVE-2026-55738: rxi microtar stack buffer overflow in raw_to_header](https://junglewise.ai/threats/cve-2026-55738-rxi-microtar-stack-buffer-overflow-in-raw-to-header) (high, CVSS 8.8, published 17 Jun 2026)
- [CVE-2026-54417: rxi microtar integer overflow in mtar_next](https://junglewise.ai/threats/cve-2026-54417-rxi-microtar-integer-overflow-in-mtar-next) (high, CVSS 7.5, published 17 Jun 2026)
- [CVE-2026-43623: rxi microtar stack buffer overflow in raw_to_header](https://junglewise.ai/threats/cve-2026-43623-rxi-microtar-stack-buffer-overflow-in-raw-to-header) (high, CVSS 8.8, published 1 Jun 2026)

## Most severe Rxi Microtar vulnerabilities

- [CVE-2026-55738: rxi microtar stack buffer overflow in raw_to_header](https://junglewise.ai/threats/cve-2026-55738-rxi-microtar-stack-buffer-overflow-in-raw-to-header) (high, CVSS 8.8, published 17 Jun 2026)
- [CVE-2026-43623: rxi microtar stack buffer overflow in raw_to_header](https://junglewise.ai/threats/cve-2026-43623-rxi-microtar-stack-buffer-overflow-in-raw-to-header) (high, CVSS 8.8, published 1 Jun 2026)
- [CVE-2026-54417: rxi microtar integer overflow in mtar_next](https://junglewise.ai/threats/cve-2026-54417-rxi-microtar-integer-overflow-in-mtar-next) (high, CVSS 7.5, published 17 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Rxi Microtar vulnerabilities", https://junglewise.ai/threats/technologies/microtar, 9 November 2026.