CVE-2023-45312

HIGHNVD 8.88.8—

8.8

In the mtproto_proxy (aka MTProto proxy) component through 0.7.2 for Erlang, a low-privileged remote attacker can access an improperly secured default installation without authenticating and achieve remote command execution ability.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 87.6%
KEV: Not listed

Published

October 10, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://medium.com/%40_sadshade/almost-2000-telegram-proxy-servers-are-potentially-vulnerable-to-rce-since-2018-742a455be16b
af854a3a-2127-422b-91ae-364da2661108https://medium.com/%40_sadshade/almost-2000-telegram-proxy-servers-are-potentially-vulnerable-to-rce-since-2018-742a455be16b

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
erlang	mtproto_proxy	—	ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Hex(1)

Package	Vulnerable range	Fixed in	Dependents
mtproto_proxy	0.5.1, 0.6.0, 0.6.1, 0.7.0, 0.7.1	—	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 16:05 UTCEG score recompute
2026-05-24 16:05 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-45312?

CVE-2023-45312 is a high vulnerability published on October 10, 2023. In the mtproto_proxy (aka MTProto proxy) component through 0.7.2 for Erlang, a low-privileged remote attacker can access an improperly secured default installation without authenticating and achieve remote command execution ability.

When was CVE-2023-45312 disclosed?

CVE-2023-45312 was first published in the National Vulnerability Database on October 10, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-45312 actively exploited?

CVE-2023-45312 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-45312?

CVE-2023-45312 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2023-45312?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-45312, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-45312

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