CVE-2017-17715 — The saveFile method in MediaController.java in the Telegram Messenger application before 2017-12-08 for Android allows directory traversal via a pathname obtained in a file-transfer request from a remote peer, as demonstrated by writing to tgnet.dat or tgnet.dat.bak

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HIGH

The saveFile method in MediaController.java in the Telegram Messenger application before 2017-12-08 for Android allows directory traversal via a pathname obtained in a file-transfer request from a remote peer, as demonstrated by writing to tgnet.dat or tgnet.dat.bak

Published Dec 16, 2017

8.8

HIGH

CVSS 3.0

EPSS 1.74%

Description

The saveFile method in MediaController.java in the Telegram Messenger application before 2017-12-08 for Android allows directory traversal via a pathname obtained in a file-transfer request from a remote peer, as demonstrated by writing to tgnet.dat or tgnet.dat.bak.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.74% 0.01741

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01741

Score over time

2021–2026

EPSS v1
EPSS v2
EPSS v3
EPSS v5

Percentile over time

EPSS v1
EPSS v2
EPSS v3
EPSS v5

Table of values (13 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.74% (0.01741)	76.90th	v5 (v2026.06.15)
Jun 15, 2026	1.74% (0.01741)	74.71th	v5 (v2026.06.15)
Jul 20, 2024	0.15% (0.00147)	51.13th	v3 (v2023.03.01)
Jun 15, 2024	0.15% (0.00147)	50.84th	v3 (v2023.03.01)
Mar 7, 2023	0.15% (0.00147)	48.83th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00885)	26.24th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.42% (0.00416)	10.04th	v1
Jan 6, 2022	0.42% (0.00416)	9.79th	v1
Sep 1, 2021	0.42% (0.00416)	25.53th	v1
Apr 14, 2021	0.42% (0.00416)	0.00th	v1

Weaknesses (1)

CWE-22

Path Traversal

References (1)

https://bugs.chromium.org/p/project-zero/issues/detail?id=1470
x_refsource_MISCIssue TrackingThird Party Advisory

Link	Providers	Tags
https://bugs.chromium.org/p/project-zero/issues/detail?id=1470		x_refsource_MISCIssue TrackingThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Dec 16, 2017

Updated Aug 5, 2024

Reserved Dec 16, 2017

Link CVE-2017-17715

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2017-17715

Red Hat

Severity n/a

Public date n/a

Links CVE-2017-17715