CVE-2018-12015

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 7.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In Perl through 5.26.2, the Archive::Tar module allows remote attackers to bypass a directory-traversal protection mechanism, and overwrite arbitrary files, via an archive file containing a symlink and a regular file with the same name.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
41
EG Risk 41/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation7% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
7.3%
EPSS %ILE
94th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 7, 2018

Last Modified

November 21, 2024

References (24)

Vendor Advisories for CVE-2018-12015(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuperl-modules-5.22 (5.22.1-9ubuntu0.5) @ xenial2026-05-28ubuntu
ubuntuperl (5.14.2-6ubuntu2.8) @ precise2026-05-28ubuntu
redhatperl-main-1.03-524.1.hum12026-04-10redhat
redhatperl-Archive-Tar-0:1.92-3.el72019-08-06redhat

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

(26 across 26 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.5(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.24.4-r1: fixed in 5.24.4-r1
—
Alpine:v3.6(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.24.4-r1: fixed in 5.24.4-r1
—
Alpine:v3.7(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.8(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-r1: fixed in 5.26.2-r1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-6: fixed in 5.26.2-6
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-6: fixed in 5.26.2-6
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-6: fixed in 5.26.2-6
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
perl—
  • every version up to 5.26.2-6: fixed in 5.26.2-6
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
perl5.20.2-3 ... 5.20.2-3+deb8u9 (12 versions)
  • every version up to 5.20.2-3+deb8u11: fixed in 5.20.2-3+deb8u11
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
perl5.24.1-3, 5.24.1-3+deb9u1, 5.24.1-3+deb9u2, 5.24.1-3+deb9u3
  • every version up to 5.24.1-3+deb9u4: fixed in 5.24.1-3+deb9u4
—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 158 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
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  4. 2026-09-30 14:59 UTCEPSS rescore
  5. 2026-09-30 09:52 UTCEG score recompute
  6. 2026-09-29 02:38 UTCOSV refresh
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  24. 2026-09-10 09:27 UTCEPSS rescore
  25. 2026-09-09 07:40 UTCOSV refresh
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  1. 2026-09-07 15:57 UTCEPSS rescore
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  15. 2026-08-23 00:14 UTCEPSS rescore
  16. 2026-08-22 16:07 UTCOSV refresh
  17. 2026-08-21 23:44 UTCEPSS rescore
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  30. 2026-08-06 20:05 UTCOSV refresh
  31. 2026-08-06 13:42 UTCEPSS rescore
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  44. 2026-07-23 01:32 UTCEG score recompute
  45. 2026-07-22 22:12 UTCEG score recompute
  46. 2026-07-22 14:04 UTCEPSS rescore
  47. 2026-07-21 15:21 UTCEPSS rescore
  48. 2026-07-21 11:47 UTCOSV refresh
  49. 2026-07-20 17:04 UTCEPSS rescore
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  70. 2026-07-04 06:28 UTCEPSS rescore
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  74. 2026-06-30 23:19 UTCEPSS rescore
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Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2018-12015?
CVE-2018-12015 is a high vulnerability published on June 7, 2018. In Perl through 5.26.2, the Archive::Tar module allows remote attackers to bypass a directory-traversal protection mechanism, and overwrite arbitrary files, via an archive file containing a symlink and a regular file with the same name.
When was CVE-2018-12015 disclosed?
CVE-2018-12015 was first published on June 7, 2018, 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-2018-12015 actively exploited?
CVE-2018-12015 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.3% probability of exploitation in the next 30 days (94th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2018-12015?
CVE-2018-12015 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-12015?
A fix for CVE-2018-12015 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2018-12015 are linked in the Vendor Advisories panel on this page.

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