OSEP
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ExploreAbout this exam
The OffSec Experienced Penetration Tester (OSEP) credential - historically tied to the PEN-300 course track - is an advanced, hands-on certification aimed at practitioners who already operate comfortably in Windows and Linux environments and want to demonstrate tradecraft beyond basic exploitation: phishing and client-side delivery, evading antivirus and EDR controls, bypassing application whitelisting, escalating privileges in Active Directory, moving laterally, and sustaining post-exploitation access on Linux hosts. Candidates are typically red teamers, senior penetration testers, or security engineers whose day job involves operating against defended networks rather than isolated vulnerable boxes. Preparation normally combines the associated OffSec course material with heavy lab repetition: building payloads, testing them against updated defensive tooling, practising process injection and in-memory execution, chaining credential access into lateral movement, and learning to troubleshoot when a technique that worked in a lab silently fails in a hardened environment. Note on this page: the official OffSec certification page was unavailable at retrieval time - the request returned a 404 - so exam length, question count, passing score, fee, retake policy and validity period are all recorded as null and should be confirmed directly with OffSec before you rely on them. The four domain areas shown here are provisional placeholders, not official weightings.
What you'll study
About OSEP preparation
What is the OSEP exam actually testing?
It targets advanced offensive tradecraft rather than fundamentals: client-side and phishing-based initial access, defence evasion against AV and EDR, application whitelisting bypass, Windows and Active Directory privilege escalation and lateral movement, and Linux post-exploitation. If you are still learning basic enumeration and web exploitation, that groundwork should come first.
How long is the exam and how many machines must I compromise?
We cannot state this reliably. The official certification page returned a 404 when retrieved, so duration, target count and point structure are unconfirmed here and are marked null. Check OffSec's own certification and exam guide documentation, and treat any number quoted on third-party sites as unverified until you confirm it at the source.
What is the passing score and does it expire?
Unconfirmed. Because the source page could not be retrieved, passing score, report requirements, certification validity period and renewal expectations are all null on this page. OffSec publishes these terms in its official exam guide and policy pages; read those before booking, since they govern your result and any later recertification obligation.
How much does the certification cost, and does the course bundle include a retake?
No fee figure is available here - the pricing details sit on pages that did not load during retrieval. OffSec bundles course access and exam attempts in several configurations, and retake terms differ between them. Confirm the current pricing, bundle contents and retake policy directly on OffSec's site at the time you purchase.
How difficult is it compared with entry-level certifications?
Candidates consistently describe it as a step up in depth, because it rewards reliable technique under defensive pressure rather than a single exploit. The hard part is rarely knowing a tool; it is making a payload survive modern endpoint protection, then chaining access without losing it. Budget substantial lab hours, not just reading time.
What should my study order look like?
Build the client-side and payload-delivery skills first, since everything downstream depends on getting an initial execution. Then work on evasion and whitelisting bypass, which you must retest continuously as defences update. Move to Windows and Active Directory escalation and lateral movement next, and finish with Linux post-exploitation, practising pivoting between the two operating systems.
What are the most common failure modes?
Time management tops the list: candidates over-invest in one stubborn host instead of banking achievable objectives. Others fail by relying on memorised payloads that current endpoint protection blocks, by not practising clean pivoting and tunnelling, or by neglecting documentation during the engagement and then struggling to write a coherent report afterwards.
Do I need to submit a report after the practical exam?
Report requirements are not confirmed on this page because the official source failed to load. OffSec's advanced exams have historically required written documentation of the attack path and evidence, and the exact submission format and deadline are defined in the official exam guide. Verify the current requirement before your attempt.
Can I prepare with labs alone, without the official course?
You can build most of the required skill set in a home lab, but you must simulate defenders: run current endpoint protection, enable logging, and test whether your payloads actually execute rather than assuming they do. The official course adds structure and OffSec-specific methodology that self-study tends to miss, so weigh both.
How current is the information on this page?
The page was last checked against the official OffSec certification URL, which returned a 404 and therefore supplied no exam data. All quantitative fields here are null and flagged for review, and the four domain areas listed are provisional placeholders. Re-verify everything against OffSec's live certification page before making scheduling or budgeting decisions.